Folding@Home - it's a project out of Stanford university for people to use their home PC to try to help understand how different proteins fold. This research may help find a cure for various kinds of cancer, Alzheimer's, Parkinson's, etc.
I set up a team for people from The W to contribute to. The link at the top of the page goes to the stats page that I set up for us to track our progress.
If you click on a profile, there are now TWO ways to check out their posts. The old way (where a list of links is provided to you) is still there, and there's also now a NEW way to get a page containing ONLY posts by that user.