In accordance with some implementations, a method for using recommendations to fulfill pre-established purchasing intent is disclosed. The method is performed on a server system having one or more processors and memory storing one or more programs for execution by the one or more processors. The server system receives a recommendation for a product or service from a first user and determines whether a second user has pre-indicated intent to purchase a product or service in a category of product or service that includes the recommended product or service. The server system then purchases the recommended product on behalf of the user without further input from the user.