The American Society for the Prevention of Cruelty to Animals says it tracked down a man accused of breaking a dog's leg by finding him through his Facebook page.
Donnell Walters, of Queens, grew so angry during a dispute with a friend in July that he attacked her
4 pound Yorkshire terrier, the ASPCA said.
The 22-year-old is charged with repeatedly hurling the dog to the pavement, snapping one of its legs.
The dog recovered after a surgery.
The ASPCA said it initially had trouble locating Walters, but tracked him through the social networking site and arrested him at his workplace in Manhattan on Friday.
The ASPCA said it wasn't sure if Walters had obtained a lawyer yet.