MySQL Cheat sheet: A good collection of cheat sheet
GIMP tutorials : Currently I am trying to learn some art work :)
From Windows to Linux Guide: This Guide is a draft of a Windows to Linux. Still in development offers some good stuff.
The Linux game Tome Ã¢â‚¬â€œ This is a site about Linux games. You will get information about new games. The best part is all games have category and ratings. Includes links to download page and screen shots.