A few good resources to check out

Question

As an IT professional with a tight budget, I am always on the look out for good resources that are free. Here are a few of my favorites,
http://www.certguard.com A must have for anyone in IT
http://www.knowledgebuster.com Free practice exams, fun for bragging rights especially (got 92% on their CISSP exam :)
http://www.technologycerts.com/demos Free videos audios and software for dozens of cert tracks
http://www.careersaver.com/signup.asp Havent registered here myself but the site claims they are giving away their award winning software
http://www.linkedin.com Great groups to join where you can ask and answer questions with like minded people