MySpace

In this undated photo provided by the Seattle U.S. Attorney's office, Maxi Sopo, who is accused of being part of a bank-fraud ring in Seattle, is shown. The Feds are on Facebook. And MySpace, LinkedIn and Twitter, too. U.S. law enforcement agents are following the rest of the Internet world into popular social-networking services, going undercover with false online profiles to communicate with suspects and gather private information, according to an internal Justice Department document that offers a tantalizing glimpse of issues related to privacy and crime fighting.