There are many different public transport options on the ground, and some underground. There are also taxis and carpooling, and many DIY options for ground transportation. Please click one of the links below.
A handy electronic journey planner for all public transport in the Netherlands is 9292.nl (App: Google Play, Apple App Store.) The following pages are more aimed at understanding entire networks, printed network maps, and other related information (i.e., geekiness).
In case you need to make a complaint, you can make them to the public transport provider, or OV Loket, ombudsman for public transport in the Netherlands. For more serious matters, contact the Politie in the Netherlands.
Pages that has to do with regular passenger rail transport now have a new home: Benelux by train.
Public transport options:
Some non-public transport options: