US Patent 8965986 Device dependent user notification

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for a device aware social graph. In one aspect, a method includes deciding to send a message to a user, the user being associated with devices. The method also includes selecting a user device from among the devices. The method also includes determining a message method. The method also includes obtaining an identifier associated with the user and the message method. The method also includes sending a message to the device using the message method and the identifier.