A Beginner's Guide To Biking The Bloodthirsty Streets Of NYC
Joyce Park stashed this in Bicycling
Most of these are just good common sense anywhere. I would add "watch out for potholes and recessed drains in the street" -- the very often put these hazards right in the bike lanes! -- and also do NOT ride on the sidewalk, it's more dangerous than the street.
In general it's a good idea not to ride on the sidewalk.