Here's a few things to get you started:

• A YouTube Video Clip Playlist API
• Random and Markov-Chained Garfield Comics
• Music
• The Bloody Nipple Saga: a story about some people playing an Old School role playing game in the world of Conan the Barbarian; it's a web comic made from screen captures of the film.
• Home Made Games
• Lightning Made of Owls - work I've done for the community online webcomic.
• How to make comics using the GIMP