Abstract: A user-content generated network is provided for presenting business listings, as well as commentary and reviews of businesses, by participants of the network. In an embodiment, businesses can participate in the network and receive referrals from members of the network. The network can track and monitor referrals that individual businesses receive as a mechanism for promoting the business to other users in the network's user base.

Abstract: A system for controlling the firing of a paint ball gun includes an electromechanical device (EMD) that produces linear motion interactive with the conventional trigger of the gun. Electronic circuitry produces pulses that activate the EMD. The pulses are based upon control signals produced by either the timing of paint balls entering the firing chamber of the gun or the detection of the presence of a single paint ball within the chamber. A manually operated electrical switch trigger activates the electronic circuitry. An adjustably predetermined number of paint balls will fire based upon each depression of the electrical switch trigger while minimizing the chopping of paint balls in the firing chamber.