CowboyRobot writes "ACM's Queue magazine interviews David P. Anderson, a research scientist at the U.C. Berkeley Space Sciences Laboratory, who directs the SETI@home and BOINC (Berkeley Open Infrastructure for Network Computing) projects. SETI@home uses hundreds of thousands of home computers in the search for extraterrestrial intelligence. FTA: "volunteer computing arose because projects such as SETI@home needed $100 million worth of computing power but didn't have the money. But there's no free lunch--a project must give participants something in return for their computer time.""