*.ubuntu.com
*.51cto.com
*.ostools.net
*.ohloh.net
http://www.php.net/
http://www.php100.com/
http://www.phpchina.com/
http://luaforge.net/
http://www.lvyebx.com/
http://redis.io/
http://www.mongodb.org/
http://www.mysql.com/
http://www.postgresql.org/
http://tortoisesvn.net/
https://duckduckgo.com/
http://www.discuz.net/
http://www.wikipedia.org/
http://www.itxinwen.com/
http://gearman.org/
http://www.chinaunix.net/
http://nginx.org/
http://www.linuxidc.com/
http://www.cnblogs.com/