I have been using grid computing software to assist research in many different areas starting with Seti@Home. But lately I have been using software that assists those in the medical field discover new cures for viruses. This is a decent organization that I think others should download and participate in :
>IBM Corp. on Nov. 23 announced an R&D program to develop medicines for HIV/AIDS, making use of the powerful computational capability of World Community Grid.
Computer users across the world can donate the unused time of their personal computers for the program by downloading the free software of the World Community Grid and registering on its website (www.worldcommunitygrid.org).
These personal computers, along with 10 supercomputers in the world, will constitute the world's first virtual supercomputer specially dedicated to AIDS research.