17. The processor-readable storage medium of claim 14 , wherein selectively displaying the received comment further comprises selectively displaying a plurality of different comments and at least two of the plurality of different comments are entered by different users.
14. A processor-readable storage medium having instructions encoded thereon that when executed by a processor cause actions to be performed, the actions comprising: receiving content and a plurality of target object lists from a content author, wherein each target object list identifies a unique subset of text within the received content as target objects and each unique subject differs by at least one target object; determining whether a user at the client device is validated by an online social network as having a relationship status with the content author; associating at least one of the plurality of target object lists with the validated user of the a client device based in part on the subject matter of the target objects, wherein the associating of the at least one target object list with the validated user of the client device is based on a social network relationship definable by the content author, and wherein the associating of the at least one target object list with the validated user of the client device is performed by a third party; displaying the received content at the client device, wherein the target objects in each associated target object list are identifiable within the displayed content as being available for associating comments based on the client device association; receiving from the client device a comment about one of the identifiable target objects; in response to detecting an action from the client device, the action being detected as associated with the identifiable target object, selectively displaying the received comment at the client device; receiving another input from the client device; and providing an expanded view of the comment with at least one other comment, and information about users having entered the comments.