tramsch.de

Hyperlinks, the veins of the www.

gentoo.org
My Linux distribution of choice. Feels like LFS on speed.

Project Euler.org
A collection of mathematical problems, to be solved with the help of a programming language.

xkcd
A real perl among all the webcomics. If anybody knows another webcomic of that quality, I'd be pleased to be notified.

userfriendly.org
Another good webcomic, which I'm following for a long time now.