可汗学院
http://open.163.com/khan/
编程范式
http://v.163.com/special/opencourse/paradigms.html
抽象编程
http://v.163.com/special/opencourse/abstractions.html
算法导论
http://v.163.com/special/opencourse/algorithms.html
Android应用程序开发
http://v.163.com/special/opencourse/developingandroidapplications.html
电路和电子学
http://v.163.com/special/opencourse/circuits.html
电和磁
http://v.163.com/special/opencourse/electricity.html
经典力学
http://v.163.com/special/opencourse/classicalmechanics.html
振动与波
http://v.163.com/special/sp/vibrationsandwaves.html
Markdown语法说明
http://wowubuntu.com/markdown/
LaTeX简单教程
http://iori.sinaapp.com/17.html/comment-page-1?replytocom=2