.NET
- BitTorrent in Silverlight
- WPF : A* search
- ExifLibrary for .NET
- More Data Binding
- Make your site run only in ONE Browser window(single instance)
Web
- Use Google's Closure Compiler in C# - Calling the Google Closure Javascript Compiler - Code - Playing with Google's Closure JS library
- Jaml - beautiful HTML generation for JavaScript
Other