Abstract: A method is proposed for providing a content page in an application. In the method, a media item is generated, and the media item is associated with respective resources in a resource list that is received from a resource provider. The media item is presented in the application. A content page is caused to be displayed in response to detecting an interaction event of a user of the application with the media item, the content page including respective content items for the respective resources. Therefore, the media item and the content page are generated and displayed in an automatic way for the one or more resource providers without any label work from the resource providers.

Abstract: An online system receives information describing a collection of objects associated with a third-party system and an objective associated with each object. Upon receiving a request to present content associated with the third-party system to a user of the online system, the online system determines one or more groups in which each object is included based on a condition satisfied by objects included in each group. For each of multiple formats that may be used to present each group of objects, the online system computes a format score indicating a predicted likelihood that the user will perform a set of actions corresponding to a set of objectives associated with the group if the format is used. The online system selects a format for presenting each group of objects based on the format scores and/or a set of format selection rules and generates the user interface using the selected format(s).