I don't like grc.com, he promotes hysteria, and never bothers to explain anything, just say "big flaw! patch! use my software!". I could go on all day about steve gibson, but I won't. I do want to say one thing though, the guy at grcsucks.com, does not know everything, he hasn't done his research, he says blackice isn't a firewall, well, I was at staples, and on the box of blackice, it said firewall. So, be wary of what you read. Take it in cautiously, and learn what these people are talking about, but not from them.

EDIT: And for somebody who talks about security, and how he does his part,(gibson), he shouldn't create software that lets people use his shields up test against others.