list

CSS 格式化:         http://cssbeautify.com/
CSS 压缩:           http://www.csscompressor.com/
HTML 格式化:        http://tools.arantius.com/tabifier	
HTML 压缩:          http://htmlcompressor.com/compressor.html
Javascript 格式化:  http://jsbeautifier.org/	 
Javascript 压缩:    http://javascriptcompressor.com/
代码高亮:           http://tohtml.com/jScript/	
XML(To/From)JSON:   http://www.utilities-online.info/xmltojson/
PNG压缩             http://tinypng.org/
loading maker       http://preloaders.net/en/all

前端观察:           http://www.qianduan.net/
agentzh的Nginx教程: http://agentzh.org/misc/nginx/agentzh-nginx-tutorials-zhcn.html

less Crunch:        http://crunchapp.net/ grunt

http://www.taobao.com/go/act/taoke/tbkcctg.php

demo库 http://codecanyon.net/category/javascript
w3c知识库 http://w3help.org/zh-cn/kb/index.html

选择器test http://jsperf.com/jquery-selector-perfs/2