Thanks to the inherent irresponsibility that comes with singing up for any social network, the IRS has been tracking down tax evaders thanks to people’s Facebook, MySpace and Twitter habits.

Mining through posted information such as relocation announcements, professional profiles and financial gains, agents with the IRS have been able to collect all sorts of bucks from would-be tax dodgers. One Nebraska agent was able to collect $2,000 from a disc jockey after he advertised on MySpace that he’d be working at a big public party. “These new supplements are often far more efficient than the older ones, such as reading the local newspaper or making inquiries at barbershops and church meetings,” said Jim Eads, director of the Federation of Tax Administrators. Another agent was able to collect $30,000 of unpaid taxes after a Google search lead him directly to his target.

So, if you’re the type of person that likes to boast about income that hasn’t been reported on Twitter, think twice. The IRS could be, and probably is, watching.