Galaxy Zoo 2
The Galaxy Zoo files contain almost a quarter of a million galaxies which have been imaged with a camera attached to a robotic telescope the Sloan Digital Sky Survey, no less). In order to understand how these galaxies — and our own — formed, we need your help to classify them according to their shapes — a task at which your brain is better than even the fastest computer.
via galaxyzoo.org
I just heard about this on the TWiS podcast. This is one of the coolest things I have heard of. I always like the idea SETI@HOME but this takes it to a new level of distributed minds. I haven't signed up yet but I plan too as I would love to just see some new galaxies and as a bonus help scientist classify them. I wonder how many other projects could use a similar modal to speed along their research.