Big raves for Time Out NY Online's restaurant and bar guide. I took for spin for the first time and I'm hooked. Pretty comprehensive, and most important, lots of recently-opened places. It's not great for reviews (though the magazine itself does a lot of fun food writing) but it's good for searching, listings, checking price points. I wish some of the functionality was different (it only lists 10 restaurants at a time, e.g.) It's free for a month, though $15 for a year. Definitely worth giving a try.