ChalkMotion - Create animated doodle slideshows
The Pixel Challenge - Build impactful daily habits and transform your life
Drawy - Learn to draw, use camera to score your drawings
Divize - Learn, Write, Master: HTML/CSS Through Real UI Challenges
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.
A Product Design Challenge - Get a design challenge to solve real-world problems