Isometric Game Art Pack - Extensive library of game art for indie devs
Sketch This - Daily drawing challenges
MagicPattern - The best design toolbox with 10+ tools for anyone
ChalkMotion - Create animated doodle slideshows
Cycloid Drawing Machine - A mesmerising spirograph-like web app
The Bored Hoard - Sieve the web for cool websites you probably never knew existed. Supporting the smaller independent sites that Google ignores. All revealed in a weekly box delivered online every Friday.