Links

Site Description
Battle for Wesnoth Wesnoth.org is the home of one of the shining stars of the free/open source gaming community, Battle for Wesnoth. In addition to the game itself, this site also hosts an active general open source game development forum.
DeviantArt Probably the biggest art community on the web.
Inkscape An excellent, easy-to-use open source vector drawing package.
Les Forges Les Forges is a pixel art website in French. Even if you don't speak the language, I highly recommend firing up Google Translate and reading some of their art tutorials, which are absolutely stellar.
Pixel Joint A pixel art community.
Pixelation From their faq: "Pixelation is a message board about pixel art, first and foremost. Its role is to provide a setting in which people may sharpen their skills by posting work and receiving critique from others, and to offer critique when others...
The GIMP An open source image manipulation package for Windows and Linux.
Toolkit Zone The official home of RPG Toolkit, an Open Source RPG maker.