https://dev.twitter.com/
http://stackoverflow.com/questions/5062419/how-to-use-twitter-api-in-android-application-for-send-tweet-only
twitter，好像没有官方的android sdk....先使用第三方的sdk了.
找到一个现成的....
https://github.com/lorensiuswlt/AndroidTwitpic
Download Win32 OpenSSL
openssl binary Distributions
http://slproweb.com/products/Win32OpenSSL.html
Android使用facebook api（一）
http://realgodo.iteye.com/blog/1236763
Android使用facebook api（二）
http://realgodo.iteye.com/blog/1236908
【转】Facebook API （Android）（上）
http://hi.baidu.com/springwang8020/blog/item/fa16982683977c2dc8955993.html
这个写的比较清楚了。。。。很详细，且浅显
http://blog.kenyang.net/2012/01/androidfacebook-login-api.html
FaceBook开放平台，移动篇android版 (指南)
http://www.cnblogs.com/tianjian/archive/2012/03/21/2410633.html
Facebook API 简介
http://www.ibm.com/developerworks/cn/xml/x-androidfacebookapi/index.html
invalid_key:Android key mismatch. Your key 解决
http://stackoverflow.com/questions/7979389/facebook-android-invalid-key
http://www.zack-notes.net/joomzack15/component/content/article/30-mobile-development-cat/348-invalid-key-issue-in-fb-connect-android.html
http://roseroo.wordpress.com/2011/08/12/invalid-key-issue-for-android-app-to-call-facebook-api/