Auto GPS Information

Magellan, Garmin, Lowrance, Morrow and Bendix/King all make GPS units specifically for aviation use. Excellent information on aviation GPS units can be found at Avweb and Avionix.

Marine-use GPS units offer extras such as fish finders and resistance to salt water. Joe Mehaffey and Jeff Yeazel's GPS information site includes reviews of marine GPS models.

GPSPassion.com has information and user reviews.

User forums provide feedback and information from owners and prospective owners of GPS systems. Some examples include GPSCity.com and the user forums at GPSMagazine.com and GPSReview.net.

Manufacturers' websites are also a good source of information and specifications:

Garmin

Magellan

Mio

Navigon

Nextar

TeleNav

TomTom

V7