BOINC (The Berkeley Open Infrastructure for Network Computing) is an open-source software platform for computing using volunteered resources.  It permits you to donate your spare computing resources to solve scientific problems.

I’ve been donating my spare computrons to:

• Einstein@Home
• LHC@home
• World Community Grid – these projects:
  • Help Cure Muscular Dystrophy
  • Help Conquer Cancer
  • Human Proteome Folding