In an embodiment, a method comprises causing, to be displayed to a user through a web page of a social network provider that provides a social network, contest data that indicates an online contest; receiving, at a particular entity, input that indicates an intention by the user to participate in the online contest; sending, from the particular entity, request data that indicates a request, by the particular entity, for one or more permissions that allows the particular entity to access information from the social network provider about the user; after sending the request data, receiving, at the particular entity, acceptance data that indicates that the user accepts the request; in response to receiving the acceptance data, causing the user to be entered in the online contest; wherein the method is performed by one or more computing devices.