Abstract: A digital delivery system and method. The method includes receiving identification information related to at least one digital book, and generating an anonymous receipt that has a single access code that represents the at least one digital book.

Abstract: A remote item-purchasing device and method. The method includes entering identification information for a physical item for sale by a seller into a mobile item-purchasing device. The method also includes, in response to entering the identification information for the item for sale into the mobile item-purchasing device, electronically obtaining, via the mobile item-purchasing device, a purchase price for the item for sale. The electronically obtained purchase price is utilized as a guide price for purchasing the item for sale from the seller.

Abstract: A system and method that includes several automatic purchasing features. The method includes establishing purchasing criteria for items to be purchased, and automatically searching marketplaces for availability of the items to be purchased. The method also includes identifying available items, of the items to be purchased, that meet the established purchasing criteria.