Methods and apparatus for providing an advertisement in a sidebar, and/or in a slidesheet associated with an application module displayed in the sidebar. The advertisement is targeted to the sidebar user based upon user specific information maintained by a content provider. The user specific information can comprise, sidebar application information, user preference information, shared user information and other information associated with the user that can be used to select an advertisement targeted to the user. An advertisement displayed in a slidesheet can be selected based upon user information and/or the functionality provided by the application module associated with the slidesheet.