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

Linux Documentation Project  
   Compilation of tutorials and HOWTOs for the linux operating system.
   http://www.linuxdoc.com/

^Rob's WerLD  
   Contains information about viruses and trojans and their fixes. For newbies and advanced.
   http://r_o_b_43.tripod.com/rob/

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/

Hackers World Portal  
   Links to hacking history, cryptology, censorship, international hacking groups, news, publications, security, weekly features.
   http://www.geocities.com/hackersworldportal/

Hacker Smiling  
   Contains books, tutorials, downloads and links to other sites.
   http://home.iprimus.com.au/ataya/

How to become a Hacker  
   ESR's paper on how to become a Hacker.
   http://www.catb.org/~esr/faqs/hacker-howto.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