Links
UNIX / Linux
Kubuntu
A Linux Distribution for the desktopwww.kubuntu.org
Gentoo
A Linux Distribution for serverswww.gentoo.org
GNU
A huge collection of free softwarewww.gnu.org
Sourceforge
Plattform for developers of free softwarewww.sourceforge.net
Freshmeat
Downloadplattform for free Linux-Softwarewww.freshmeat.net