18. The computer readable storage medium of claim 17 , wherein the social advertisement and the plurality of stories sent to the client device comprise a feed of information provided for display.
18. The computer readable storage medium of claim 17 , wherein the social advertisement and the plurality of stories sent to the client device comprise a feed of information provided for display. 19. The computer readable storage medium of claim 18 , wherein the feed is presented such that the viewing user cannot determine that the story selected for display as a social advertisement is sponsored by an advertiser.