Abstract: A system and method are provided for socially contingent purchase of tickets. The method includes receiving a contingent purchase request from a first buyer, receiving information regarding the identity of a second buyer, providing a notification to the second buyer, and executing the purchase for the first buyer upon execution of a purchase by the second buyer.

Abstract: Systems and methods are provided for facilitating ticket redemption or check-in for an event using a self-portrait electronic ticket. One method includes presenting information related to the ticket, determining that a redemption or check-in function associated with the ticket is available, receiving an indication from the user that redemption or check-in should be initiated, capturing an image of the user, and presenting an electronic ticket derived in part from the captured image. The user may then present the electronic ticket on the mobile device to redeem the ticket for a service or product, or obtain efficient entry, and, if needed, reentry, to an event.