Yesterday I released my .JSON library as a NuGet package (about time). It is named DotJson.Source to follow current conventions. If you need me to, I can also release it as a compiled DLL.
You can get it via Visual Studio or the Nuget.org page.
Add it as a library reference via Nuget. In your code file, you can add a
using DotJson; and then start using the library. That's all you have to do.
See the documentation wiki for more information.