I am always looking for good 2D game art tutorials. Although a lot can be found on the internet, only a few are really covering the stuff I am looking for.
Nick Gravelyn recommended a site on Twitter which shows how you can create your own vector and bitmap game graphics with Gimp and Inkscape. I really like the depictive character of the tutorials.
Check it out at http://2dgameartforprogrammers.blogspot.com/