oAuth

http://oauth.net/core/1.0/

Flash AS http://www.douhua.im/2010/01/12/actionscript-for-oauth-step-by-step/

douban API http://www.douban.com/service/apidoc/auth

Google oAuth Code http://oauth.googlecode.com/svn/code/

Would You Like Some Quechup with Your Phish & Chips?
http://hueniverse.com/2007/09/would-you-like-some-quechup-with-your-phish-chips/