This is this website's obligatory "links" page. It is designed to give you a further background on the New York City and New Jersey area transit agencies.
MTA Metro North Railroad runs trains primarily out of New York's Grand Central Terminal, on three lines: Hudson, Harlem, and New Haven. The New Haven Line has three branches: New Canaan, Danbury, and Waterbury. Metro North also has two services west of the Hudson River: the Pascack Valley and Port Jervis Lines. These are operated under contract with NJ TRANSIT, and serve Hoboken Terminal.
MTA Long Island Railroad runs trains primarily out of Jamaica Station, on many branch lines to all parts of Long Island. Western termini include New York's Penn Station, Brooklyn's Atlantic Terminal, and Long Island City and Hunterspoint Avenue in Queens.
MTA New York City Transit runs all the subways in four boroughs, as well as most of the bus service in all five boroughs. They also operate the Staten Island Railway, which runs between the St. George Ferry Terminal and Tottenville.
Port Authority Trans Hudson operates an interstate network of heavy rail lines in Essex and Hudson Couties in New Jersey, and routes into New York City, serving both the World Trade Center and Midtown Manhattan under Avenue of the Americas.
AirTrain Newark provides monorail service between the three major terminals at Newark Liberty International Airport, as well as its remote parking lots, car rental locations, and the rail station on the Northeast Corridor served by NJ TRANSIT commuter trains and Amtrak.
AirTrain JFK provides light rail service between the major terminals at John F. Kennedy International Airport, as well as its remote parking lots, car rental locations, the Howard Beach subway station, and the Jamaica station served by subways and LIRR commuter trains.