The GIMP is “teh cool” in my book because it’s free, it’s powerful, and it’s just so geeky. A lot of designer friends of mine aren’t too comfortable with the GIMP, though, and would rather stick to Photoshop. Of course, I understand, as Photoshop is still today’s gold standard for image manipulation (and creation). But for the GIMP fanatics (and people who have no other choice), you might want to visit GUG-the GIMP Users Group–an interesting site that has tutorials on everything from doing basic textures, working with layers and paths, to using scripts.
.. by far, largest collection of Gimp arts and tutorials anywhere on the internet! Right now our galleries contain 2662 pictures, 220 textures, and we have 225 members! Further, we offer 18 Script-Fu scripts.
I don’t know why I’m such a GIMP fan. It’s probably because I’m not a graphic designer.