Newark Airport is my home base. The best places to spot is while rideing the tram in between the terminals. It actually takes you our over the concourse. Terminal A has United, US Airways, America West Airlines, TWA and KIWI. Terminal B is all international arrivals. Terminal C is all Continental. The best time to go is between 3:00 and 7:00. That is when most of the international flights come in.
"History does not long entrust the care of freedom to the weak or timid." D. Eisenhower