1. A method performed by a handheld text capture device for initiating a purchase, the method comprising: capturing a text sequence from a rendered document using the handheld text capture device; identifying by the handheld text capture device a reference to a distinguished product within the contents of the captured text sequence; in response to the identifying, presenting on a display of the handheld text capture device to the user an opportunity to purchase the distinguished product; and when the user accepts the opportunity to purchase the distinguished product, purchasing the distinguished product on behalf of the user.