Citizen science projects

The number of citizen science projects seem to be taking off, very cool 8)
This one for example just requires taking and submitting a digital picture on August the 5’th of a white piece of paper between the hours of 4 and 7 pm.

What projects do you guys belong to?

I’m currently involved in www.icehunters.org, www.citizensky.org and www.globeatnight.org

SETI@home and malaria control

ah yes, the donate cpu projects, I’m on Einstein@home

Or you could join distributed proofreaders. They occasionally have (old, out of copyright) science books that you can help convert to etexts for distribution on Project Gutenberg.