Patent ID: 8627379

Claim:
A system, comprising: at least one processor; and one or more memory devices to store instructions that, when executed by the at least one processor, cause a computing device to: receive, from a device over a first communication channel, an identifier of a first user and an identifier of a first item within a stream output by a content output device coupled to the device; send, over a second communication channel that is different than the first communication channel, a message to the first user regarding the first item; receive, from the device coupled to the content output device and over the first communication channel, an identifier of a second, different user and an identifier of a second item within the stream output by the content output device; generate a message to the second user regarding the second item; and send, over a third communication channel that is at least different than the first communication channel and independent of the device coupled to the content output device, the message to the second user regarding the second item.