Qzone certification: http://page.opensns.qq.com/apply.html
Sogou official website certification: http://help.sogou.com/renzheng/
(New) Sogou Ask Open Platform: http://open.wenwen.sogou.com/
Baidu official website certification: http://guanwang.baidu.com/vcard/officialsite
360 official website certification: http://zhanzhang.so.com/?m=SiteCertification&a=siteVerify
Discuz! Open Platform: http://open.discuz.net/
PHPCMS open platform: http://open.phpcms.cn/
Soso Forum Open Plan: http://open.soso.com/datacoop/bbs/submitbbs.html (only for Discus, it will bring a lot of external links)
Sogou Open Platform: http://open.sogou.com/ (Sogou is merged into Sogou, so Sogou has great potential)
Sina Weibo Open Platform: http://open.weibo.com/
Microgame open platform: http://open.weibo.com/game/
Tencent Weibo Open Platform: http://dev.open.t.qq.com/
WeChat Open Platform: http://open.weixin.qq.com/
Tencent Community Open Platform: http://opensns.qq.com/
Tencent Q+ platform: http://dev.qplus.com/
Paipai Open Platform: http://pop.paipai.com/
QQ Connect: http://connect.qq.com/
Baidu Open Platform: http://open.baidu.com/
Baidu Developer Center: http://developer.baidu.com/
Baidu knows the open platform: http://open.zhidao.baidu.com/
Renren Open Platform: http://dev.renren.com/
NetEase Weibo Open Platform: http://open.t.163.com/
NetEase Cloud Reading Open Platform: http://open.yuedu.163.com/
Sohu Weibo Open Platform: http://open.t.sohu.com/
Sohu News Client Omnimedia Platform: http://mp.k.sohu.com/
Sohu Blog Open Platform: http://ow.blog.sohu.com/
Taobao Open Platform: http://open.taobao.com
Alipay Open Platform: http://bizpartner.alipay.com/denglu/index.htm
Alibaba Open Platform: http://open.1688.com/
豆瓣API key：http://www.douban.com/service/apikey/apply
UC UTV Open Platform: http://www.uc.cn/business/ucly.shtml
Tianya Open Platform: http://open.tianya.cn/
Google Webmaster Developers: https://www.google.com/accounts/ManageDomains
Kaixin Open Platform: http://open.kaixin001.com/
Tianyi Open Platform: http://open.189.cn/
360 software open platform: http://rz.360.cn/
360 application open platform: http://dev.app.360.cn/
Yahoo Open Platform: https://developer.apps.yahoo.com/projects
Twitter Open Platform: https://dev.twitter.com/
Facebook Open Platform: https://developers.facebook.com/
56 Video Open Platform: http://dev.56.com/
亿起发–开放平台：http://open.yiqifa.com/