For those of you not listening in on the Discussions group, I wanted to point you to yesterday's post from DIYcity member Jordan:
I put together a quick web service for querying zoning/land use information in New York City over the weekend. You can either pass a street address or longitude/latitude pair and it will return data for the 10 closest tax lots as an XML document. (And if you pass a street address, it will attempt to match the address on the PLUTO record and send that as the first record.)
Read his full post here.
Excellent, nice work Jordan.