试用Tornado的非阻塞功能
http://blog.csdn.net/linvo/archive/2010/08/06/5793764.aspx
node.js和coroutine
http://shiningray.cn/node-js-coroutine.html 灰常好
Redqueue 一个用python实现的Queue Server
http://superisaac.javaeye.com/blog/602344
Benchmarking Tornado vs. Twisted Web vs. Tornado on Twisted
The technology behind Tornado, FriendFeed's web server
