多线程方面很好的学习资料

http://knowledge.swanky.wu.googlepages.com/threading_in_c_sharp.html

http://www.codeproject.com/KB/cs/managediocp-part-2.aspx

http://www.codeproject.com/KB/cs/AsynchronousCodeBlocks.aspx

http://www.cnblogs.com/dabing/archive/2009/06/17/1504848.html