[Buzz.Today]2011.11.29

>> 几个不错的Q&A系统

Stackoverflow搞得不错，也就有了些Clone：

OSQA:

Python + Django

http://www.osqa.net

Derived from CNProg

CNProg:

Python + Django

https://github.com/cnprog/CNPROG/tree

Question2Answer：

PHP

>> Quora

quora Ruby:

https://github.com/huacnlee/quora