Attrition's Newbie Area - Newbie-oriented tutorials about stuff like UNIX and system penetration auditing.Hackerthreads.org - Tutorials about networking, system administration and network utilities.
Hacker\Culture The main objective of this Web site is to provide primary documentation, and a little guidance, for those who wish to research the culture around hacking either from a general or an academic perspective. http://www.tranquileye.com/hackerculture/
Hackers World Portal Links to hacking history, cryptology, censorship, international hacking groups, news, publications, security, weekly features. http://www.geocities.com/hackersworldportal/
The Happy Hacker Home of the Guides to (Mostly) Harmless Hacking. Focus is mainly on Windows 95 and 98. Some mention of Windows NT. http://www.happyhacker.org/
How to Become a Hacker A short essay on becoming an "old-guard" hacker (NOT a cracker or phreaker). http://www.robson.org/gary/writing/becomeahacker.html
The New Hacker's Dictionary Hacking jargon including information on writing style, hacker terms, and lamer-speak. http://catb.org/~esr/jargon/html/frames.html
UNIX / Net / Hack Unix and internet lore, technical docs and programming tutorials. http://www.unix.geek.org.uk/~arny/