Patent ID: 8774172

Claim:
A method of streaming an audio feed and secondary content to a user device, the method comprising: by a content server comprising physical computer hardware: receiving a request from a user device to access an audio feed for streaming, the audio feed associated with a corresponding video; wirelessly streaming the audio feed to the user device via a Voice over IP (VoIP) conference call; identifying a feed characteristic related to caption text associated with the video corresponding to the audio feed; extracting a plurality of keywords from the caption text; sorting the keywords based on frequency of occurrence in the caption text; selecting a most highly-ranked subset of the keywords based on the frequency of occurrence in the caption text; supplying the subset of the keywords to an ad server along with a request for an advertisement based on the subset of the keywords; receiving the advertisement in response to the request; and transmitting the advertisement to the user device in response to receiving the advertisement, thereby providing a targeted advertisement related to the audio feed to the user device.