20. A method comprising: accessing a plurality of public posts of user-generated textual content; wherein the plurality of public posts comprise a set of two of more posts from a same author; for each public post of the plurality of public posts of user-generated textual content, based at least in part on a word or phrase in the textual content of the public post, determining a degree to which the public post is associated with an entity; in response to a user's request for information about the entity, performing the steps of: selecting a set of public posts from the plurality of public posts that are predicted to be associated with the entity; and causing concurrent display, to a user other than the entity, of the selected set of public posts and information retrieved about the entity; wherein the method is performed by one or more computing devices.
21. The method of claim 20 , wherein the plurality of public posts of user-generated content comprise public posts by users of two or more social networking services, and further comprising: identifying a first user of the two or more social networking services as a same author as a second user of another of the two or more social networking services.