Abstract: A personalized campaign engine is provided. The personalized campaign engine selects a user as a candidate receiver of a campaign message. A personalized campaign message is generated for the user that comprises content items that are relevant to the user based on identified relationships between the user and content items and relationships between the user and other individuals. Relationships between the user and content items and relationships between the user and other individuals are identified by interrogating disparate repositories of information for organizational relationship data and activity data associated with the user. The personalized campaign engine customizes the campaign message for the user by using known information about the user to select a certain template, medium, and delivery strategy.

Abstract: Generation and presentation of visual representations of search results may be provided. In response to any type of search for which one or more content or information items are returned, a preview image is obtained or generated and displayed in a graphical user interface for allowing a user to preview documents or other information items returned for the search query. The displayed preview image may be a selectable object such that selection of the displayed preview image allows the user to navigate to or launch the content item, for example, a searched document, corresponding to the preview image.