Regular-Expressions.info: http://www.regular-expressions.info/atomic.html
curl: http://curl.haxx.se/
sourceforge：http://sourceforge.net/
mark lutz's book support site: http://www.rmi.net/~lutz/
中国论文下载中心：http://www.studa.net/yingyong/080502/09240261.html
javaeye技术： http://www.javaeye.com/topic/389177
cplusplus: http://cplusplus.com/
o'reily books: http://docstore.mik.ua/orelly/
vim tips for perl or more:
http://vim-taglist.sourceforge.net/manual.html http://www.thegeekstuff.com/2009/04/ctags-taglist-vi-vim-editor-as-sourece-code-browser/ http://vim.wikia.com/wiki/Best_Vim_Tips http://www.8t8.us/vim/vim.html http://mamchenkov.net/wordpress/2004/05/10/vim-for-perl-developers/
linux man page: http://linux.die.net/man/
php: http://www.php.net/
鸟哥的linux： http://linux.vbird.org/
online flow chart drawing: http://www.gliffy.com/
