DarkhanD Communications
The UK's leading technical support site.

UNIX / Net / Hack
Unix and internet lore, technical docs and programming tutorials.

The Archives
Intended as a support site for hackers, this currently contains link lists for programs and text files.

Chris' DQC Archives
Various files on conspiracy theory.

US Government Information Security
DOD, Navy, and other government bodies' information security documents.

Wietse's Tools and Papers
Various computer security related papers.

Higher Learning
This page is meant for all the hackers who still believe in the old hacker code, and contains texts concerning the arts of hacking, phreaking and demo coding.

Beginner's Guide To Lock Picking
A step by step guide to learning lock picking for common domestic locks.

Sla 123
Download some research papers that are pretty good. You can add your research papers by sending them via email.

Internet information computers
Legal but underground information about windows OS and the internet