second life
interesting stats from cnet news about second life.
"Second Life" currently runs on 2,579 servers that use the dual-core Opteron chip produced by AMD. Each server is responsible for an individual "sim," or 16 acres of virtual "Second Life" land. And since "sims" generate a minimum of $200 in monthly land-use fees, Rosedale contended that the large number of servers pay for themselves.