http://www.symfony-project.org/book/1_2/02-Exploring-Symfony-s-Code

http://www.securitytechnet.com/menu/magazine.html

http://www.win.tue.nl/hashclash/rogue-ca/
http://bits.blogs.nytimes.com/2008/12/30/outdated-security-software-threatens-web-commerce/?hp

nhn ui guide: http://html.nhndesign.com/
서명덕기자의 인터넷세상: http://itviewpoint.com/tt/index.php
w3school: http://www.w3schools.com/
x-debugger: http://xdebug.org/docs-profiling2.php

oracle 추천 사이트
http://www.psoug.org/library.html
http://www.oracle.com/pls/db102/homepage

Security
http://hackademix.net/