Entrepreneurs say some of the most successful MySpace spinoff businesses are now being auctioned for thousands of dollars. "People make a ton of money" selling the sites, says Michael Melen, who operates several MySpace-related services. Melen's offerings include Myspacesponsor.com, which shares ad revenues with MySpace users who put banner ads in their profiles, and Unblockmyspace.com, which allows users to surf the site anonymously.