diff --git a/Src/Newtonsoft.Json.Tests/Bson/BsonReaderTests.cs b/Src/Newtonsoft.Json.Tests/Bson/BsonReaderTests.cs
index 7548052d..18e701cd 100644
--- a/Src/Newtonsoft.Json.Tests/Bson/BsonReaderTests.cs
+++ b/Src/Newtonsoft.Json.Tests/Bson/BsonReaderTests.cs
@@ -31,6 +31,7 @@ using System.Text;
 using NUnit.Framework;
 using Newtonsoft.Json.Bson;
 using System.IO;
+using Newtonsoft.Json.Tests.Serialization;
 using Newtonsoft.Json.Utilities;
 using Newtonsoft.Json.Linq;
 
@@ -1164,5 +1165,54 @@ namespace Newtonsoft.Json.Tests.Bson
       Assert.IsTrue(reader.Read());
       Assert.AreEqual(JsonToken.EndObject, reader.TokenType);
     }
+
+    public void UriGuidTimeSpanTestClassEmptyTest()
+    {
+      UriGuidTimeSpanTestClass c1 = new UriGuidTimeSpanTestClass();
+
+      var memoryStream = new MemoryStream();
+      var bsonWriter = new BsonWriter(memoryStream);
+      JsonSerializer serializer = new JsonSerializer();
+      serializer.Serialize(bsonWriter, c1);
+      bsonWriter.Flush();
+      memoryStream.Position = 0;
+
+      var bsonReader = new BsonReader(memoryStream);
+
+      UriGuidTimeSpanTestClass c2 = serializer.Deserialize<UriGuidTimeSpanTestClass>(bsonReader);
+      Assert.AreEqual(c1.Guid, c2.Guid);
+      Assert.AreEqual(c1.NullableGuid, c2.NullableGuid);
+      Assert.AreEqual(c1.TimeSpan, c2.TimeSpan);
+      Assert.AreEqual(c1.NullableTimeSpan, c2.NullableTimeSpan);
+      Assert.AreEqual(c1.Uri, c2.Uri);
+    }
+
+    public void UriGuidTimeSpanTestClassValuesTest()
+    {
+      UriGuidTimeSpanTestClass c1 = new UriGuidTimeSpanTestClass
+      {
+        Guid = new Guid("1924129C-F7E0-40F3-9607-9939C531395A"),
+        NullableGuid = new Guid("9E9F3ADF-E017-4F72-91E0-617EBE85967D"),
+        TimeSpan = TimeSpan.FromDays(1),
+        NullableTimeSpan = TimeSpan.FromHours(1),
+        Uri = new Uri("http://testuri.com")
+      };
+
+      var memoryStream = new MemoryStream();
+      var bsonWriter = new BsonWriter(memoryStream);
+      JsonSerializer serializer = new JsonSerializer();
+      serializer.Serialize(bsonWriter, c1);
+      bsonWriter.Flush();
+      memoryStream.Position = 0;
+
+      var bsonReader = new BsonReader(memoryStream);
+
+      UriGuidTimeSpanTestClass c2 = serializer.Deserialize<UriGuidTimeSpanTestClass>(bsonReader);
+      Assert.AreEqual(c1.Guid, c2.Guid);
+      Assert.AreEqual(c1.NullableGuid, c2.NullableGuid);
+      Assert.AreEqual(c1.TimeSpan, c2.TimeSpan);
+      Assert.AreEqual(c1.NullableTimeSpan, c2.NullableTimeSpan);
+      Assert.AreEqual(c1.Uri, c2.Uri);
+    }
   }
 }
\ No newline at end of file
diff --git a/Src/Newtonsoft.Json.Tests/Linq/DynamicTests.cs b/Src/Newtonsoft.Json.Tests/Linq/DynamicTests.cs
index 12c6e239..83b3f8f6 100644
--- a/Src/Newtonsoft.Json.Tests/Linq/DynamicTests.cs
+++ b/Src/Newtonsoft.Json.Tests/Linq/DynamicTests.cs
@@ -118,7 +118,10 @@ namespace Newtonsoft.Json.Tests.Linq
         new JProperty("DateTime", new JValue(new DateTime(2000, 12, 29, 23, 51, 10, DateTimeKind.Utc))),
         new JProperty("Boolean", new JValue(true)),
         new JProperty("String", new JValue("A string lol!")),
-        new JProperty("Bytes", new JValue(Encoding.UTF8.GetBytes("A string lol!")))
+        new JProperty("Bytes", new JValue(Encoding.UTF8.GetBytes("A string lol!"))),
+        new JProperty("Uri", new Uri("http://json.codeplex.com/")),
+        new JProperty("Guid", new Guid("EA27FE1D-0D80-44F2-BF34-4654156FA7AF")),
+        new JProperty("TimeSpan", TimeSpan.FromDays(1))
         );
 
       dynamic d = o;
@@ -166,6 +169,27 @@ namespace Newtonsoft.Json.Tests.Linq
       Assert.IsTrue(d.Bytes == d.Bytes);
       Assert.IsTrue(d.Bytes == Encoding.UTF8.GetBytes("A string lol!"));
       Assert.IsTrue(d.Bytes == new JValue(Encoding.UTF8.GetBytes("A string lol!")));
+
+      Assert.IsTrue(d.Uri == d.Uri);
+      Assert.IsTrue(d.Uri == new Uri("http://json.codeplex.com/"));
+      Assert.IsTrue(d.Uri > new Uri("http://abc.org/"));
+      Assert.IsTrue(d.Uri >= new Uri("http://abc.com/"));
+      Assert.IsTrue(d.Uri > null);
+      Assert.IsTrue(d.Uri >= null);
+
+      Assert.IsTrue(d.Guid == d.Guid);
+      Assert.IsTrue(d.Guid == new Guid("EA27FE1D-0D80-44F2-BF34-4654156FA7AF"));
+      Assert.IsTrue(d.Guid > new Guid("AAAAAAAA-0D80-44F2-BF34-4654156FA7AF"));
+      Assert.IsTrue(d.Guid >= new Guid("AAAAAAAA-0D80-44F2-BF34-4654156FA7AF"));
+      Assert.IsTrue(d.Guid > null);
+      Assert.IsTrue(d.Guid >= null);
+
+      Assert.IsTrue(d.TimeSpan == d.TimeSpan);
+      Assert.IsTrue(d.TimeSpan == TimeSpan.FromDays(1));
+      Assert.IsTrue(d.TimeSpan > TimeSpan.FromHours(1));
+      Assert.IsTrue(d.TimeSpan >= TimeSpan.FromHours(1));
+      Assert.IsTrue(d.TimeSpan > null);
+      Assert.IsTrue(d.TimeSpan >= null);
     }
 
     [Test]
@@ -179,7 +203,10 @@ namespace Newtonsoft.Json.Tests.Linq
         new JProperty("DateTime", new JValue(new DateTime(2000, 12, 29, 23, 51, 10, DateTimeKind.Utc))),
         new JProperty("Boolean", new JValue(true)),
         new JProperty("String", new JValue("A string lol!")),
-        new JProperty("Bytes", new JValue(Encoding.UTF8.GetBytes("A string lol!")))
+        new JProperty("Bytes", new JValue(Encoding.UTF8.GetBytes("A string lol!"))),
+        new JProperty("Uri", new Uri("http://json.codeplex.com/")),
+        new JProperty("Guid", new Guid("EA27FE1D-0D80-44F2-BF34-4654156FA7AF")),
+        new JProperty("TimeSpan", TimeSpan.FromDays(1))
         );
 
       dynamic d = o;
@@ -454,7 +481,10 @@ namespace Newtonsoft.Json.Tests.Linq
         new JProperty("DateTime", new JValue(new DateTime(2000, 12, 29, 23, 51, 10, DateTimeKind.Utc))),
         new JProperty("Boolean", new JValue(true)),
         new JProperty("String", new JValue("A string lol!")),
-        new JProperty("Bytes", new JValue(Encoding.UTF8.GetBytes("A string lol!")))
+        new JProperty("Bytes", new JValue(Encoding.UTF8.GetBytes("A string lol!"))),
+        new JProperty("Uri", new Uri("http://json.codeplex.com/")),
+        new JProperty("Guid", new Guid("EA27FE1D-0D80-44F2-BF34-4654156FA7AF")),
+        new JProperty("TimeSpan", TimeSpan.FromDays(1))
         );
 
       dynamic d = o;
@@ -466,6 +496,9 @@ namespace Newtonsoft.Json.Tests.Linq
       Assert.AreEqual("True", d.Boolean.ToString());
       Assert.AreEqual("A string lol!", d.String.ToString());
       Assert.AreEqual("System.Byte[]", d.Bytes.ToString());
+      Assert.AreEqual("http://json.codeplex.com/", d.Uri.ToString());
+      Assert.AreEqual("ea27fe1d-0d80-44f2-bf34-4654156fa7af", d.Guid.ToString());
+      Assert.AreEqual("1.00:00:00", d.TimeSpan.ToString());
     }
 
     [Test]
@@ -539,6 +572,14 @@ namespace Newtonsoft.Json.Tests.Linq
       AssertValueConverted<ushort>(ushort.MinValue);
       AssertValueConverted<ushort?>(ushort.MinValue);
       AssertValueConverted<ushort?>(null);
+      AssertValueConverted<TimeSpan>(TimeSpan.FromDays(1));
+      AssertValueConverted<TimeSpan?>(TimeSpan.FromDays(1));
+      AssertValueConverted<TimeSpan?>(null);
+      AssertValueConverted<Guid>(new Guid("60304274-CD13-4060-B38C-057C8557AB54"));
+      AssertValueConverted<Guid?>(new Guid("60304274-CD13-4060-B38C-057C8557AB54"));
+      AssertValueConverted<Guid?>(null);
+      AssertValueConverted<Uri>(new Uri("http://json.codeplex.com/"));
+      AssertValueConverted<Uri>(null);
     }
 
     private static void AssertValueConverted<T>(object value)
diff --git a/Src/Newtonsoft.Json.Tests/Linq/JObjectTests.cs b/Src/Newtonsoft.Json.Tests/Linq/JObjectTests.cs
index 0a14d86e..731e3443 100644
--- a/Src/Newtonsoft.Json.Tests/Linq/JObjectTests.cs
+++ b/Src/Newtonsoft.Json.Tests/Linq/JObjectTests.cs
@@ -1591,5 +1591,32 @@ Parameter name: arrayIndex")]
       Assert.AreEqual(false, prop4.ShouldSerializeValue(o));
     }
 #endif
+
+    [Test]
+    public void FromObjectTimeSpan()
+    {
+      JValue v = (JValue)JToken.FromObject(TimeSpan.FromDays(1));
+      Assert.AreEqual(v.Value, TimeSpan.FromDays(1));
+
+      Assert.AreEqual("1.00:00:00", v.ToString());
+    }
+
+    [Test]
+    public void FromObjectUri()
+    {
+      JValue v = (JValue)JToken.FromObject(new Uri("http://www.stuff.co.nz"));
+      Assert.AreEqual(v.Value, new Uri("http://www.stuff.co.nz"));
+
+      Assert.AreEqual("http://www.stuff.co.nz/", v.ToString());
+    }
+
+    [Test]
+    public void FromObjectGuid()
+    {
+      JValue v = (JValue)JToken.FromObject(new Guid("9065ACF3-C820-467D-BE50-8D4664BEAF35"));
+      Assert.AreEqual(v.Value, new Guid("9065ACF3-C820-467D-BE50-8D4664BEAF35"));
+
+      Assert.AreEqual("9065acf3-c820-467d-be50-8d4664beaf35", v.ToString());
+    }
   }
 }
\ No newline at end of file
diff --git a/Src/Newtonsoft.Json.Tests/Linq/JValueTests.cs b/Src/Newtonsoft.Json.Tests/Linq/JValueTests.cs
index 16ebf467..94673a23 100644
--- a/Src/Newtonsoft.Json.Tests/Linq/JValueTests.cs
+++ b/Src/Newtonsoft.Json.Tests/Linq/JValueTests.cs
@@ -71,6 +71,19 @@ namespace Newtonsoft.Json.Tests.Linq
       v.Value = StringComparison.OrdinalIgnoreCase;
       Assert.AreEqual(StringComparison.OrdinalIgnoreCase, v.Value);
       Assert.AreEqual(JTokenType.Integer, v.Type);
+
+      v.Value = new Uri("http://json.codeplex.com/");
+      Assert.AreEqual(new Uri("http://json.codeplex.com/"), v.Value);
+      Assert.AreEqual(JTokenType.Uri, v.Type);
+
+      v.Value = TimeSpan.FromDays(1);
+      Assert.AreEqual(TimeSpan.FromDays(1), v.Value);
+      Assert.AreEqual(JTokenType.TimeSpan, v.Type);
+
+      Guid g = Guid.NewGuid();
+      v.Value = g;
+      Assert.AreEqual(g, v.Value);
+      Assert.AreEqual(JTokenType.Guid, v.Type);
     }
 
     [Test]
@@ -115,6 +128,15 @@ namespace Newtonsoft.Json.Tests.Linq
 
       v = new JValue(new DateTime(2000, 12, 12, 20, 59, 59, DateTimeKind.Utc), JTokenType.Date);
       Assert.AreEqual("12/12/2000 20:59:59", v.ToString(null, CultureInfo.InvariantCulture));
+
+      v = new JValue(new Uri("http://json.codeplex.com/"));
+      Assert.AreEqual("http://json.codeplex.com/", v.ToString(null, CultureInfo.InvariantCulture));
+
+      v = new JValue(TimeSpan.FromDays(1));
+      Assert.AreEqual("1.00:00:00", v.ToString(null, CultureInfo.InvariantCulture));
+
+      v = new JValue(new Guid("B282ADE7-C520-496C-A448-4084F6803DE5"));
+      Assert.AreEqual("b282ade7-c520-496c-a448-4084f6803de5", v.ToString(null, CultureInfo.InvariantCulture));
     }
 
     [Test]
diff --git a/Src/Newtonsoft.Json.Tests/Linq/LinqToJsonTest.cs b/Src/Newtonsoft.Json.Tests/Linq/LinqToJsonTest.cs
index 73fae2b4..56ea70ff 100644
--- a/Src/Newtonsoft.Json.Tests/Linq/LinqToJsonTest.cs
+++ b/Src/Newtonsoft.Json.Tests/Linq/LinqToJsonTest.cs
@@ -33,6 +33,7 @@ using Newtonsoft.Json.Linq;
 using System.Xml;
 using System.IO;
 using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Tests.Serialization;
 using Newtonsoft.Json.Tests.TestObjects;
 
 namespace Newtonsoft.Json.Tests.Linq
@@ -782,5 +783,54 @@ keyword such as type of business.""
         },
         o.Children()["item"].Children()["title"].Values<string>().ToArray());
     }
+
+    public void UriGuidTimeSpanTestClassEmptyTest()
+    {
+      UriGuidTimeSpanTestClass c1 = new UriGuidTimeSpanTestClass();
+      JObject o = JObject.FromObject(c1);
+
+      Assert.AreEqual(@"{
+  ""Guid"": ""00000000-0000-0000-0000-000000000000"",
+  ""NullableGuid"": null,
+  ""TimeSpan"": ""00:00:00"",
+  ""NullableTimeSpan"": null,
+  ""Uri"": null
+}", o.ToString());
+
+      UriGuidTimeSpanTestClass c2 = o.ToObject<UriGuidTimeSpanTestClass>();
+      Assert.AreEqual(c1.Guid, c2.Guid);
+      Assert.AreEqual(c1.NullableGuid, c2.NullableGuid);
+      Assert.AreEqual(c1.TimeSpan, c2.TimeSpan);
+      Assert.AreEqual(c1.NullableTimeSpan, c2.NullableTimeSpan);
+      Assert.AreEqual(c1.Uri, c2.Uri);
+    }
+
+    public void UriGuidTimeSpanTestClassValuesTest()
+    {
+      UriGuidTimeSpanTestClass c1 = new UriGuidTimeSpanTestClass
+      {
+        Guid = new Guid("1924129C-F7E0-40F3-9607-9939C531395A"),
+        NullableGuid = new Guid("9E9F3ADF-E017-4F72-91E0-617EBE85967D"),
+        TimeSpan = TimeSpan.FromDays(1),
+        NullableTimeSpan = TimeSpan.FromHours(1),
+        Uri = new Uri("http://testuri.com")
+      };
+      JObject o = JObject.FromObject(c1);
+
+      Assert.AreEqual(@"{
+  ""Guid"": ""1924129c-f7e0-40f3-9607-9939c531395a"",
+  ""NullableGuid"": ""9e9f3adf-e017-4f72-91e0-617ebe85967d"",
+  ""TimeSpan"": ""1.00:00:00"",
+  ""NullableTimeSpan"": ""01:00:00"",
+  ""Uri"": ""http://testuri.com/""
+}", o.ToString());
+
+      UriGuidTimeSpanTestClass c2 = o.ToObject<UriGuidTimeSpanTestClass>();
+      Assert.AreEqual(c1.Guid, c2.Guid);
+      Assert.AreEqual(c1.NullableGuid, c2.NullableGuid);
+      Assert.AreEqual(c1.TimeSpan, c2.TimeSpan);
+      Assert.AreEqual(c1.NullableTimeSpan, c2.NullableTimeSpan);
+      Assert.AreEqual(c1.Uri, c2.Uri);
+    }
   }
 }
\ No newline at end of file
diff --git a/Src/Newtonsoft.Json.Tests/Serialization/JsonSerializerTest.cs b/Src/Newtonsoft.Json.Tests/Serialization/JsonSerializerTest.cs
index 3bafc02a..c446773b 100644
--- a/Src/Newtonsoft.Json.Tests/Serialization/JsonSerializerTest.cs
+++ b/Src/Newtonsoft.Json.Tests/Serialization/JsonSerializerTest.cs
@@ -4795,5 +4795,63 @@ keyword such as type of business.""
       IList list = JsonConvert.DeserializeObject<IList>("['1', 'two', 'III']");
       Assert.AreEqual(3, list.Count);
     }
+
+    public void UriGuidTimeSpanTestClassEmptyTest()
+    {
+      UriGuidTimeSpanTestClass c1 = new UriGuidTimeSpanTestClass();
+      string json = JsonConvert.SerializeObject(c1, Formatting.Indented);
+
+      Assert.AreEqual(@"{
+  ""Guid"": ""00000000-0000-0000-0000-000000000000"",
+  ""NullableGuid"": null,
+  ""TimeSpan"": ""00:00:00"",
+  ""NullableTimeSpan"": null,
+  ""Uri"": null
+}", json);
+
+      UriGuidTimeSpanTestClass c2 = JsonConvert.DeserializeObject<UriGuidTimeSpanTestClass>(json);
+      Assert.AreEqual(c1.Guid, c2.Guid);
+      Assert.AreEqual(c1.NullableGuid, c2.NullableGuid);
+      Assert.AreEqual(c1.TimeSpan, c2.TimeSpan);
+      Assert.AreEqual(c1.NullableTimeSpan, c2.NullableTimeSpan);
+      Assert.AreEqual(c1.Uri, c2.Uri);
+    }
+
+    public void UriGuidTimeSpanTestClassValuesTest()
+    {
+      UriGuidTimeSpanTestClass c1 = new UriGuidTimeSpanTestClass
+        {
+          Guid = new Guid("1924129C-F7E0-40F3-9607-9939C531395A"),
+          NullableGuid = new Guid("9E9F3ADF-E017-4F72-91E0-617EBE85967D"),
+          TimeSpan = TimeSpan.FromDays(1),
+          NullableTimeSpan = TimeSpan.FromHours(1),
+          Uri = new Uri("http://testuri.com")
+        };
+      string json = JsonConvert.SerializeObject(c1, Formatting.Indented);
+
+      Assert.AreEqual(@"{
+  ""Guid"": ""1924129c-f7e0-40f3-9607-9939c531395a"",
+  ""NullableGuid"": ""9e9f3adf-e017-4f72-91e0-617ebe85967d"",
+  ""TimeSpan"": ""1.00:00:00"",
+  ""NullableTimeSpan"": ""01:00:00"",
+  ""Uri"": ""http://testuri.com/""
+}", json);
+
+      UriGuidTimeSpanTestClass c2 = JsonConvert.DeserializeObject<UriGuidTimeSpanTestClass>(json);
+      Assert.AreEqual(c1.Guid, c2.Guid);
+      Assert.AreEqual(c1.NullableGuid, c2.NullableGuid);
+      Assert.AreEqual(c1.TimeSpan, c2.TimeSpan);
+      Assert.AreEqual(c1.NullableTimeSpan, c2.NullableTimeSpan);
+      Assert.AreEqual(c1.Uri, c2.Uri);
+    }
+  }
+
+  public class UriGuidTimeSpanTestClass
+  {
+    public Guid Guid { get; set; }
+    public Guid? NullableGuid { get; set; }
+    public TimeSpan TimeSpan { get; set; }
+    public TimeSpan? NullableTimeSpan { get; set; }
+    public Uri Uri { get; set; }
   }
 }
\ No newline at end of file
diff --git a/Src/Newtonsoft.Json/Bson/BsonWriter.cs b/Src/Newtonsoft.Json/Bson/BsonWriter.cs
index 4f7c4cbe..3d2d6ebc 100644
--- a/Src/Newtonsoft.Json/Bson/BsonWriter.cs
+++ b/Src/Newtonsoft.Json/Bson/BsonWriter.cs
@@ -410,6 +410,36 @@ namespace Newtonsoft.Json.Bson
       base.WriteValue(value);
       AddValue(value, BsonType.Binary);
     }
+
+    /// <summary>
+    /// Writes a <see cref="Guid"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Guid"/> value to write.</param>
+    public override void WriteValue(Guid value)
+    {
+      base.WriteValue(value);
+      AddToken(new BsonString(value.ToString(), true));
+    }
+
+    /// <summary>
+    /// Writes a <see cref="TimeSpan"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="TimeSpan"/> value to write.</param>
+    public override void WriteValue(TimeSpan value)
+    {
+      base.WriteValue(value);
+      AddToken(new BsonString(value.ToString(), true));
+    }
+
+    /// <summary>
+    /// Writes a <see cref="Uri"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Uri"/> value to write.</param>
+    public override void WriteValue(Uri value)
+    {
+      base.WriteValue(value);
+      AddToken(new BsonString(value.ToString(), true));
+    }
     #endregion
 
     /// <summary>
diff --git a/Src/Newtonsoft.Json/JsonConvert.cs b/Src/Newtonsoft.Json/JsonConvert.cs
index f3a09788..86d20d54 100644
--- a/Src/Newtonsoft.Json/JsonConvert.cs
+++ b/Src/Newtonsoft.Json/JsonConvert.cs
@@ -375,6 +375,26 @@ namespace Newtonsoft.Json
       return '"' + value.ToString("D", CultureInfo.InvariantCulture) + '"';
     }
 
+    /// <summary>
+    /// Converts the <see cref="TimeSpan"/> to its JSON string representation.
+    /// </summary>
+    /// <param name="value">The value to convert.</param>
+    /// <returns>A JSON string representation of the <see cref="TimeSpan"/>.</returns>
+    public static string ToString(TimeSpan value)
+    {
+      return '"' + value.ToString() + '"';
+    }
+
+    /// <summary>
+    /// Converts the <see cref="Uri"/> to its JSON string representation.
+    /// </summary>
+    /// <param name="value">The value to convert.</param>
+    /// <returns>A JSON string representation of the <see cref="Uri"/>.</returns>
+    public static string ToString(Uri value)
+    {
+      return '"' + value.ToString() + '"';
+    }
+
     /// <summary>
     /// Converts the <see cref="String"/> to its JSON string representation.
     /// </summary>
@@ -452,6 +472,18 @@ namespace Newtonsoft.Json
         return ToString((DateTimeOffset)value);
       }
 #endif
+      else if (value is Guid)
+      {
+        return ToString((Guid) value);
+      }
+      else if (value is Uri)
+      {
+        return ToString((Uri) value);
+      }
+      else if (value is TimeSpan)
+      {
+        return ToString((TimeSpan) value);
+      }
 
       throw new ArgumentException("Unsupported type: {0}. Use the JsonSerializer class to get the object's JSON representation.".FormatWith(CultureInfo.InvariantCulture, value.GetType()));
     }
@@ -493,6 +525,12 @@ namespace Newtonsoft.Json
 #endif
       if (type == typeof(byte[]))
         return true;
+      if (type == typeof(Uri))
+        return true;
+      if (type == typeof(TimeSpan))
+        return true;
+      if (type == typeof(Guid))
+        return true;
 
       return IsJsonPrimitiveTypeCode(Type.GetTypeCode(type));
     }
@@ -511,9 +549,14 @@ namespace Newtonsoft.Json
       if (value is DateTimeOffset)
         return true;
 #endif
-
       if (value is byte[])
         return true;
+      if (value is Uri)
+        return true;
+      if (value is TimeSpan)
+        return true;
+      if (value is Guid)
+        return true;
 
       return false;
     }
diff --git a/Src/Newtonsoft.Json/JsonTextWriter.cs b/Src/Newtonsoft.Json/JsonTextWriter.cs
index 02aa35a9..71cce015 100644
--- a/Src/Newtonsoft.Json/JsonTextWriter.cs
+++ b/Src/Newtonsoft.Json/JsonTextWriter.cs
@@ -461,6 +461,36 @@ namespace Newtonsoft.Json
       WriteValueInternal(JsonConvert.ToString(value), JsonToken.Date);
     }
 #endif
+
+    /// <summary>
+    /// Writes a <see cref="Guid"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Guid"/> value to write.</param>
+    public override void WriteValue(Guid value)
+    {
+      base.WriteValue(value);
+      WriteValueInternal(JsonConvert.ToString(value), JsonToken.String);
+    }
+
+    /// <summary>
+    /// Writes a <see cref="TimeSpan"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="TimeSpan"/> value to write.</param>
+    public override void WriteValue(TimeSpan value)
+    {
+      base.WriteValue(value);
+      WriteValueInternal(JsonConvert.ToString(value), JsonToken.Date);
+    }
+
+    /// <summary>
+    /// Writes a <see cref="Uri"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Uri"/> value to write.</param>
+    public override void WriteValue(Uri value)
+    {
+      base.WriteValue(value);
+      WriteValueInternal(JsonConvert.ToString(value), JsonToken.Date);
+    }
     #endregion
 
     /// <summary>
diff --git a/Src/Newtonsoft.Json/JsonWriter.cs b/Src/Newtonsoft.Json/JsonWriter.cs
index 9a5b8c1e..00b5c7db 100644
--- a/Src/Newtonsoft.Json/JsonWriter.cs
+++ b/Src/Newtonsoft.Json/JsonWriter.cs
@@ -814,6 +814,24 @@ namespace Newtonsoft.Json
     }
 #endif
 
+    /// <summary>
+    /// Writes a <see cref="Guid"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Guid"/> value to write.</param>
+    public virtual void WriteValue(Guid value)
+    {
+      AutoComplete(JsonToken.String);
+    }
+
+    /// <summary>
+    /// Writes a <see cref="TimeSpan"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="TimeSpan"/> value to write.</param>
+    public virtual void WriteValue(TimeSpan value)
+    {
+      AutoComplete(JsonToken.String);
+    }
+
     /// <summary>
     /// Writes a <see cref="Nullable{Int32}"/> value.
     /// </summary>
@@ -1000,6 +1018,30 @@ namespace Newtonsoft.Json
     }
 #endif
 
+    /// <summary>
+    /// Writes a <see cref="Nullable{Guid}"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Nullable{Guid}"/> value to write.</param>
+    public virtual void WriteValue(Guid? value)
+    {
+      if (value == null)
+        WriteNull();
+      else
+        WriteValue(value.Value);
+    }
+
+    /// <summary>
+    /// Writes a <see cref="Nullable{TimeSpan}"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Nullable{TimeSpan}"/> value to write.</param>
+    public virtual void WriteValue(TimeSpan? value)
+    {
+      if (value == null)
+        WriteNull();
+      else
+        WriteValue(value.Value);
+    }
+
     /// <summary>
     /// Writes a <see cref="T:Byte[]"/> value.
     /// </summary>
@@ -1012,6 +1054,18 @@ namespace Newtonsoft.Json
         AutoComplete(JsonToken.Bytes);
     }
 
+    /// <summary>
+    /// Writes a <see cref="Uri"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Uri"/> value to write.</param>
+    public virtual void WriteValue(Uri value)
+    {
+      if (value == null)
+        WriteNull();
+      else
+        AutoComplete(JsonToken.String);
+    }
+
     /// <summary>
     /// Writes a <see cref="Object"/> value.
     /// An error will raised if the value cannot be written as a single JSON token.
@@ -1092,6 +1146,21 @@ namespace Newtonsoft.Json
         WriteValue((byte[])value);
         return;
       }
+      else if (value is Guid)
+      {
+        WriteValue((Guid)value);
+        return;
+      }
+      else if (value is Uri)
+      {
+        WriteValue((Uri)value);
+        return;
+      }
+      else if (value is TimeSpan)
+      {
+        WriteValue((TimeSpan)value);
+        return;
+      }
 
       throw new ArgumentException("Unsupported type: {0}. Use the JsonSerializer class to get the object's JSON representation.".FormatWith(CultureInfo.InvariantCulture, value.GetType()));
     }
diff --git a/Src/Newtonsoft.Json/Linq/JToken.cs b/Src/Newtonsoft.Json/Linq/JToken.cs
index a024f208..600dbe31 100644
--- a/Src/Newtonsoft.Json/Linq/JToken.cs
+++ b/Src/Newtonsoft.Json/Linq/JToken.cs
@@ -1157,6 +1157,30 @@ namespace Newtonsoft.Json.Linq
       return FromObjectInternal(o, jsonSerializer);
     }
 
+    /// <summary>
+    /// Creates the specified .NET type from the <see cref="JToken"/>.
+    /// </summary>
+    /// <returns>The new object created from the JSON value.</returns>
+    public T ToObject<T>()
+    {
+      return ToObject<T>(new JsonSerializer());
+    }
+
+    /// <summary>
+    /// Creates the specified .NET type from the <see cref="JToken"/> using the specified <see cref="JsonSerializer"/>.
+    /// </summary>
+    /// <param name="jsonSerializer">The <see cref="JsonSerializer"/> that will be used when creating the object.</param>
+    /// <returns>The new object created from the JSON value.</returns>
+    public T ToObject<T>(JsonSerializer jsonSerializer)
+    {
+      ValidationUtils.ArgumentNotNull(jsonSerializer, "jsonSerializer");
+
+      using (JTokenReader jsonReader = new JTokenReader(this))
+      {
+        return jsonSerializer.Deserialize<T>(jsonReader);
+      }
+    }
+
     /// <summary>
     /// Creates a <see cref="JToken"/> from a <see cref="JsonReader"/>.
     /// </summary>
diff --git a/Src/Newtonsoft.Json/Linq/JTokenReader.cs b/Src/Newtonsoft.Json/Linq/JTokenReader.cs
index f70f6f11..b88495b5 100644
--- a/Src/Newtonsoft.Json/Linq/JTokenReader.cs
+++ b/Src/Newtonsoft.Json/Linq/JTokenReader.cs
@@ -242,11 +242,25 @@ namespace Newtonsoft.Json.Linq
         case JTokenType.Bytes:
           SetToken(JsonToken.Bytes, ((JValue)token).Value);
           break;
+        case JTokenType.Guid:
+          SetToken(JsonToken.String, SafeToString(((JValue)token).Value));
+          break;
+        case JTokenType.Uri:
+          SetToken(JsonToken.String, SafeToString(((JValue)token).Value));
+          break;
+        case JTokenType.TimeSpan:
+          SetToken(JsonToken.String, SafeToString(((JValue)token).Value));
+          break;
         default:
           throw MiscellaneousUtils.CreateArgumentOutOfRangeException("Type", token.Type, "Unexpected JTokenType.");
       }
     }
 
+    private string SafeToString(object value)
+    {
+      return (value != null) ? value.ToString() : null;
+    }
+
     bool IJsonLineInfo.HasLineInfo()
     {
       if (CurrentState == State.Start)
diff --git a/Src/Newtonsoft.Json/Linq/JTokenType.cs b/Src/Newtonsoft.Json/Linq/JTokenType.cs
index dafb7e12..18e0500a 100644
--- a/Src/Newtonsoft.Json/Linq/JTokenType.cs
+++ b/Src/Newtonsoft.Json/Linq/JTokenType.cs
@@ -89,6 +89,18 @@ namespace Newtonsoft.Json.Linq
     /// <summary>
     /// A collection of bytes value.
     /// </summary>
-    Bytes
+    Bytes,
+    /// <summary>
+    /// A Guid value.
+    /// </summary>
+    Guid,
+    /// <summary>
+    /// A Uri value.
+    /// </summary>
+    Uri,
+    /// <summary>
+    /// A TimeSpan value.
+    /// </summary>
+    TimeSpan
   }
 }
\ No newline at end of file
diff --git a/Src/Newtonsoft.Json/Linq/JTokenWriter.cs b/Src/Newtonsoft.Json/Linq/JTokenWriter.cs
index ecb208d8..2aa233d1 100644
--- a/Src/Newtonsoft.Json/Linq/JTokenWriter.cs
+++ b/Src/Newtonsoft.Json/Linq/JTokenWriter.cs
@@ -368,6 +368,36 @@ namespace Newtonsoft.Json.Linq
       base.WriteValue(value);
       AddValue(value, JsonToken.Bytes);
     }
+
+    /// <summary>
+    /// Writes a <see cref="TimeSpan"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="TimeSpan"/> value to write.</param>
+    public override void WriteValue(TimeSpan value)
+    {
+      base.WriteValue(value);
+      AddValue(value, JsonToken.String);
+    }
+
+    /// <summary>
+    /// Writes a <see cref="Guid"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Guid"/> value to write.</param>
+    public override void WriteValue(Guid value)
+    {
+      base.WriteValue(value);
+      AddValue(value, JsonToken.String);
+    }
+
+    /// <summary>
+    /// Writes a <see cref="Uri"/> value.
+    /// </summary>
+    /// <param name="value">The <see cref="Uri"/> value to write.</param>
+    public override void WriteValue(Uri value)
+    {
+      base.WriteValue(value);
+      AddValue(value, JsonToken.String);
+    }
     #endregion
   }
 }
diff --git a/Src/Newtonsoft.Json/Linq/JValue.cs b/Src/Newtonsoft.Json/Linq/JValue.cs
index 927e36b4..2054e84f 100644
--- a/Src/Newtonsoft.Json/Linq/JValue.cs
+++ b/Src/Newtonsoft.Json/Linq/JValue.cs
@@ -115,6 +115,33 @@ namespace Newtonsoft.Json.Linq
     {
     }
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="JValue"/> class with the given value.
+    /// </summary>
+    /// <param name="value">The value.</param>
+    public JValue(Guid value)
+      : this(value, JTokenType.String)
+    {
+    }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="JValue"/> class with the given value.
+    /// </summary>
+    /// <param name="value">The value.</param>
+    public JValue(Uri value)
+      : this(value, JTokenType.String)
+    {
+    }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="JValue"/> class with the given value.
+    /// </summary>
+    /// <param name="value">The value.</param>
+    public JValue(TimeSpan value)
+      : this(value, JTokenType.String)
+    {
+    }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="JValue"/> class with the given value.
     /// </summary>
@@ -192,15 +219,15 @@ namespace Newtonsoft.Json.Linq
             if (!(objB is DateTimeOffset))
               throw new ArgumentException("Object must be of type DateTimeOffset.");
 
-            DateTimeOffset date1 = (DateTimeOffset)objA;
-            DateTimeOffset date2 = (DateTimeOffset)objB;
+            DateTimeOffset date1 = (DateTimeOffset) objA;
+            DateTimeOffset date2 = (DateTimeOffset) objB;
 
             return date1.CompareTo(date2);
           }
 #endif
         case JTokenType.Bytes:
           if (!(objB is byte[]))
-              throw new ArgumentException("Object must be of type byte[].");
+            throw new ArgumentException("Object must be of type byte[].");
 
           byte[] bytes1 = objA as byte[];
           byte[] bytes2 = objB as byte[];
@@ -210,6 +237,30 @@ namespace Newtonsoft.Json.Linq
             return 1;
 
           return MiscellaneousUtils.ByteArrayCompare(bytes1, bytes2);
+        case JTokenType.Guid:
+          if (!(objB is Guid))
+            throw new ArgumentException("Object must be of type Guid.");
+
+          Guid guid1 = (Guid) objA;
+          Guid guid2 = (Guid) objB;
+
+          return guid1.CompareTo(guid2);
+        case JTokenType.Uri:
+          if (!(objB is Uri))
+            throw new ArgumentException("Object must be of type Uri.");
+
+          Uri uri1 = (Uri)objA;
+          Uri uri2 = (Uri)objB;
+
+          return Comparer<string>.Default.Compare(uri1.ToString(), uri2.ToString());
+        case JTokenType.TimeSpan:
+          if (!(objB is TimeSpan))
+            throw new ArgumentException("Object must be of type TimeSpan.");
+
+          TimeSpan ts1 = (TimeSpan)objA;
+          TimeSpan ts2 = (TimeSpan)objB;
+
+          return ts1.CompareTo(ts2);
         default:
           throw MiscellaneousUtils.CreateArgumentOutOfRangeException("valueType", valueType, "Unexpected value type: {0}".FormatWith(CultureInfo.InvariantCulture, valueType));
       }
@@ -389,6 +440,12 @@ namespace Newtonsoft.Json.Linq
         return JTokenType.Bytes;
       else if (value is bool)
         return JTokenType.Boolean;
+      else if (value is Guid)
+        return JTokenType.Guid;
+      else if (value is Uri)
+        return JTokenType.Uri;
+      else if (value is TimeSpan)
+        return JTokenType.TimeSpan;
 
       throw new ArgumentException("Could not determine JSON object type for type {0}.".FormatWith(CultureInfo.InvariantCulture, value.GetType()));
     }
@@ -492,6 +549,11 @@ namespace Newtonsoft.Json.Linq
         case JTokenType.Bytes:
           writer.WriteValue((byte[])_value);
           return;
+        case JTokenType.Guid:
+        case JTokenType.Uri:
+        case JTokenType.TimeSpan:
+          writer.WriteValue((_value != null) ? _value.ToString() : null);
+          return;
       }
 
       throw MiscellaneousUtils.CreateArgumentOutOfRangeException("TokenType", _valueType, "Unexpected token type.");