EFF: RIAA Subpoena Database

“Concerned that information about your file-sharing username may have been subpoenaed by the RIAA? Check here to see if your username or IP address is on one of the subpoenas filed with the D.C. District Court. This information is drawn from the court’s publicly available PACER database and will be updated when that system is updated.

For more information on limiting your liability, check out How Not to Get Sued by the RIAA for File Sharing (and other Ideas to Avoid Being Treated Like a Criminal).” Electronic Frontier Foundation