I moved out to NYC from Chicago last year (spent every week going back and forth during the three previous years). The reason you can't find any information online, is because we are all too busy kiting to post anything on the intertron
Clearly, you are getting spoiled by this fantastic Chicago kite forum. I have yet to find another source with such a thick concentration of location specific information and helpful local kiters. The scene is definitely different in NYC / NJ, but the area offers the most diverse kiting options I have found anywhere, and we get a consistent kiteable seabreeze every sunny day in the summertime. I score more sessions out here in a month than in a full year back in Chicago, so definitely bring your gear when you come out.
Let me know when you are heading out here, and I can give you more details on some good spots and folks to connect with.