11. The computer program product of claim 8 , wherein the computer readable program when executed on the computer causes the computer further to: retrieve a user relationship map for the user; determine other users that are more than one hop away from the user in the user relationship map; retrieve content by the other users as the extended content; determine quality of the extended content; and combine more extended content than engaging content to the combined list of content if the quality of the extended content is high.
14. The computer program product of claim 11 , wherein the computer readable program when executed on the computer causes the computer to also: combine approximately a same amount of engaging content and extended content to the combined list of content if the quality of the extended content is not high.