python 抓取网页的几个不错的资料

http://www.cnpythoner.com/post/pythonduoxianchen.html

http://www.ibm.com/developerworks/cn/aix/library/au-threadingpython/

http://blog.csdn.net/songchunyi/article/details/6532276

http://hi.baidu.com/tongwensong/blog/item/c1168cb1d5cea244082302d3.html