Links

Mathematics

• MAA Online - Mathematical Association of America
• AMS - American Mathematical Society
• Google Groups: sci.math - Archives for sci.math newsgroup
• MathWorld - Eric Weisstein's World of Mathematics
• MacTutor History of Mathematics - Biographies, historical topics, and more.
• PlanetMath - Online math encyclopedia
• arXiv.org - Mathematics - Math preprints galore.

Computer Related

• Debian GNU/Linux - Behold the power of apt.
• Ubuntu Linux - Linux for Human Beings
• GNU Project/Free Software Foundation - GNU's Not Unix
• Linux Kernel Archives - The kernel used by GNU/Linux operating systems.

Miscellaneous

• Pronunciation Guide to Mathematicians - Learn to pronounce those names.
• Google News - You have to get your news from somewhere.
• Vim Online - Vi IMproved
• LaTeX Project - Excellent document preparation system.