Crunching / Folding

How many of you here participate in crunching and/or folding ? What do you crunch/fold for?

I don't participate in any crunching or folding; however, I would advise anyone using a metered service to choose their participation wisely. Here's an example of one individual that signed up for participation and that specific Folding@ application is using 9GBs a month of his bandwidth:
F@H montly bandwidth usage. - Hardware Canucks