The present discloser relates to deferring invitational content. A content delivery system is configured to deliver invitational content to user terminals and can also provide a means to defer the invitational content until a condition has been met by providing a user interface element configured to terminate the content. The deferred content can be entered into a deferral queue. Conditions can be a set time or based on capabilities of the user terminal. The conditions can be set by the system or a user. The user can specify parameters through use of user interface elements. Deferral can be handled by the user terminal or a server. In addition content management systems can be configured to manage campaigns including tracking costs and impressions. When content is deferred, the initial impression is not fully counted; however, redelivery can be counted as an enhanced impression with a higher value.