Information Security
Secure Computing
Hackin9
2600: The Hacker Quarterly
Blacklisted 411
IEEE Security & Privacy
and I subscribe to none. I pick up a HQ or a Blacklisted 411 whenever I get a chance. I REALLY want an IEEE membership to Security & Privacy... that has probably the most informative articles out of all.
oh, I subscribe to over 70 RSS feeds as well and frequent some 15+ mailing lists (http://seclists.org/)
A lot of information flows through mailing lists like bugtraq. If you arn't on one of those I highly suggest joining and just perusing it every once in a while.