The long-troubled arrangement to install wireless Internet networks in Central Park and other New York City parks has quietly collapsed after the contractor, Wi-Fi Salon, ran out of money because it could not find corporate sponsors. The networks were quietly shut down in October and Wi-Fi Salon is removing the equipment from the park locations, which include seven hot spots in Central Park, two in Prospect Park, and others at Washington Square, Battery, Riverside, Van Cortlandt, Pelham Bay and Flushing Meadows-Corona Parks, as well as Orchard Beach. [ABSTRACT FROM PUBLISHER]