Mystic Software » A now dead website that still houses a lot of game and resource downloads.
RippyKiYay » Need ripped graphics and audio for your game? This resource site has over 500+ files collected over 10 years.
Game Programming Wiki » Game Programming Wiki
Pixel2Life » Has a huge selection of tutorials relating in 2D Graphics, 3D Graphics, Audio Editing, Business, Applications, Databases, Desktop Programming, Game and Skin Editors, Operating Systems, Video Editing, Website Development, and other categories. It's just a great site.
Anim8or » Anim8or is a free 3D modeling and character animation program.
Blender » Blender is the open source software for 3D modeling, animation, rendering, post-production, interactive creation and playback. Available for all major operating systems under the GNU General Public License.
GIMP » GIMP is freely distributed software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.