My company sites...
Web performance optimization.
Royalty-free Silverlight controls and XAML illustrations submitted by developers and designers.
Powerful and easy to use .NET regex tester built in Silverlight.
My personal sites...
My personal blog (mostly programming stuff).
My OpenGL site. Most of the programs and tutorials are outdated by today's standards, but I suppose it could still be useful to someone.
Calculate how fast your car will reach 60 mph from a standstill.