Interesting Finds: 2009-03-21

1. Mix: Mobile Web Sites with ASP.NET MVC and the Mobile Browser Definition File
2. [译]一种简单，快速，精准的sin/cos函数模拟，及as3实现
3. 项目常用算法之 一个C#资源池的实现
4. ICommand is like a chocolate cake
5. The Undo-Redo paradox
6. .NET 4.0 中的契约式编程
7. 谈表达式树的缓存（5）：引入散列值