Abstract: Systems and methods in accordance with embodiments of the invention can automatically generate advertising campaigns on an online social network using affinity information collected concerning members of one or more online social networks. In one embodiment, a method of targeting a piece of content as a paid advertisement within an online social network includes retrieving metrics with respect to engagement by members of an online social network, determining user affinities based upon the retrieved metrics, determining demographics of members of the online social network that have engaged with the pieces of content, identifying at least one cluster of members of the online social network based on the demographics, where the members are clustered based upon targeting information, and targeting at least one of the specific pieces of content as a paid advertisement targeted based on targeting information.

Abstract: Systems and methods of identifying and retrieving messages that satisfy a search query using the context of the message and term frequencies are provided. One embodiment includes identifying at least one category relevant to the search query, wherein a plurality of scored keywords are associated with each category, selecting at least one of the scored keywords that is relevant to an identified category, performing a plurality of searches of messages from a social networking messaging service to retrieve messages, where at least one search includes retrieving messages based on the original search query and one of the selected scored keywords, scoring the retrieved messages with respect to each of the at least one identified categories using at least the scored keywords relevant to each category, and returning at least the message with the highest score as the search result.