Donate your pc's computing power to scientific research projects like
- Climateprediction.net: study climate change
- Einstein@home: search for gravitational signals emitted by pulsars
- LHC@home: improve the design of the CERN LHC particle accelerator
- Predictor@home: investigate protein-related diseases
- Rosetta@home: help researchers develop cures for human diseases
- SETI@home: Look for radio evidence of extraterrestrial life
- Cell Computing: biomedical research (Japanese; requires nonstandard client software)
I've donated one of my pcs to 4 projects:mrgreen: