Abstract: Provided are methods and systems for determining whether an online event has been completed by a user. A website or other interactive service maintains user activity data reflective of the activities of its users. A failure analysis component analyzes the user activity data to automatically detect likely failure events. An event filtering component intelligently accesses information from unrelated websites, interactive services, and/or offline services to determine whether an event was successfully completed by a user. One or more communications are sent to the user for select failure and successful events, preferably taking into consideration information about the event itself and information about the particular user. Such communications present the user with information about the same event or other possible events that are related to the original event that the user might be interested in completing.