Have you heard of Picnik, the free online photo editor? I've used it sporadically in the past. I signed up to be a beta tester a long time ago and was just notified that I'm "in."
These photos didn't really need much editing, but it's fun to just play around with all the tools that I don't have in other programs (like a Holga or Lomo Lens as seen here). The site also reads your flickr and Picasa web albums, which is totally handy.
Anyway - it appears that they are looking for more beta testers. To request being added to the list - leave them "feedback" from within Picnik.