Once in a while (ok, almost every day) I come across some interesting sites. Here's a few that I can't add to the WBTA list (end shameless plug), because they're too off-topic:
Open Source Vulnerability DataBase
http://www.osvdb.org
Need a 2nd job?
http://geeksoncall.com/
...and from the Kat himself:
http://iworkwithfools.com/
and
http://proudpickers.com/