[ciupinet]

I follow and sometimes contribute to a couple of forums: http://www.unix.com and http://serverfault.com/.

[tfitzgerald]

I'm on Server Fault everyday. Even if you don't ask or answer questions, it is interesting to read all of the content.

[Maven911]

Thanks how could I forget serverfault :)

I also like: http://www.cyberciti.biz/ for *nix related stuff