I've just started the Diabetes365 group on flickr (it's really renamed from a photo pool that never took off). The idea is to post a diabetes-related picture (or screen snapshot) for every day of the year.
I've also blogged about my first post to the flickr pool, you can learn more about the project there.
Have you got the stamina to get involved? I'd love to see some other photographers join me there. (And I'm blogging while low , always a bad idea.)