here are some good Security links:
Security - in order of Brainstorming, as usual.
Some links may be dead, but are not beeing removed.
They are marked "ceased".
security "snake oil warning signs"
nmap @ fyodors playhouse
Solar Designer (john, linux-ow)
Bell LibSafe (protects shared libs)
Advanced Research Corp (SARA, TARA)
Nomad Mobile Reseach Center (pandora)
[+] The L0pht (L0phtcrack) - practically ceased
The Packetfactory (Libnet et al)
Phrack Magazine (see ftp for tarballs)
[+] Rhino9 (dissolved) - ceased
Textfiles - HUGE archive !
Packet Storm (HUGE Archive !)
[+] old (2nd gen) packetstorm - ceased
[+] very old packetstorm - ceased
THC - The Hackers Choice
Hackers Dot Com
Fred Cohen (dtk, monthly column)
Counterpane Systems (attack trees etc)
new hack city labs
Hacking Exposed - the Book
Marschall Kirk McKusick`s Homepage (UCB CSRG)
cult of the dead cow
CCC (German, HTTPS)
Network Flight Recorder
[+] Anzen (NIDS-Benchmark) - ceased (NFR boyout)
Active Matrix Hideway
[+] Password Dictionaries - ceased
black hat conference
[+] PHAKE (DE) - ceased
Royal Holloway ISG (the dream they stole me)