airfarewatchdog.com
my new fav. site. but be careful because a lot of them don't include the taxes.
also, jetblue.com and southwest.com
oh wow.. 150 bucks cheaper than orbitz. ha maybe i should check differnet airports on orbitz though. i only checked Newark cuz it's the most convenient (close to mom and dad's house lol)
www.farecast.com makes it pretty easy to compare prices from nearby airports