A method and system are provided for targeting specific users with specific requested actions to be performed by the user and verified by any methods on behalf of an advertiser within an Internet display advertising campaign. The system discloses techniques for receiving an advertiser's requested actions and corresponding definitions of what constitutes a satisfaction of the action. The disclosure also details techniques for determining if and when and to what degree a requested action has been completed or satisfied by the targeted user, and details corresponding techniques for compensating the user and any other real or virtual entity who had contributed to the satisfaction of the requested action. The system implements a network of sensors that can aid in the determination of if and when and to what degree a requested action has been completed or satisfied. The network of sensors registers sensor recordings within a specialized sensor recording marketplace.