QA -useful links

Junit testing: http://portnov.com/data/vlad/

Selenium : http://host.tehportal.net/selenium/

http://seleniumhq.org/docs/

Selenium interview questions:
http://www.softwaretestingstuff.com/2009/08/selenium-interview-questions-1.html

QA: http://portnov.com/data/

Good info on Agile testing :

http://www.exforsys.com/tutorials/testing/testing-for-agile-software-development.html

Unix Basics:

http://www.softwaretestinghelp.com/unix-basics-for-software-testers/

Networking/Services Testing:

http://class1.grinberg.biz/sessions.htm

QTP tutorial:

http://qtp.blogspot.com/