| 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. |
| Hackers World Portal: Links to hacking history, cryptology, censorship, international hacking groups, news, publications, security, weekly features. |
| How to Become a Hacker: A short essay on becoming an "old-guard" hacker (NOT a cracker or phreaker). |
| How to become a Hacker: ESR's paper on how to become a Hacker. |
| Linux Documentation Project: Compilation of tutorials and HOWTOs for the linux operating system. |
| The Happy Hacker: Home of the Guides to (Mostly) Harmless Hacking. Focus is mainly on Windows 95 and 98. Some mention of Windows NT. |
| The New Hacker's Dictionary: Hacking jargon including information on writing style, hacker terms, and lamer-speak. |
| ^Rob's WerLD: Contains information about viruses and trojans and their fixes. For newbies and advanced. |