The L0pht
Phrack
The Cult of the Dead Cow
2600
Pulhas
CERT Org
Rhino9
Linux Org
Nomad Mobile Research Center
Hacker News Network (HNN)
Legions of Underground (LoU)
Hackers.Com (HDC)
HFX International Org
RootShell
Techtronic
Karma
Genocide2600
HackPhreak Org
Arrition Org
New Hack City