Alibaba Group:
Github: https://github.com/alibaba
About: http://news.alibaba.com/specials/aboutalibaba/aligroup/index.html
Alibaba Taobao:
Github: https://github.com/taobao
Wiki: http://code.taobao.org
Site: http://www.taobao.com
Alibaba B2B:
Github: https://github.com/alibabatech
Wiki: http://code.alibabatech.com
Site: http://www.alibaba.com
Alibaba PHPWind:
Github: https://github.com/phpwind
Wiki: http://code.alibabatech.com/wiki/display/wind
Site: http://www.phpwind.com