Hi. I am a contributor to Planefinder from my location in upstate NY. My site picks up planes over NYC if they are at least 1500'. I am about 55 air miles north of the city. I love this hobby, especially on clear days like we have been having all week, sitting outside with my iPad and a scanner. I was wondering if there is a list anywhere of contributors? I see there must be one in NYC by JFK as I sometimes see planes on the ground there on Planefinder. Just thought I would add my two cents!