Retailer's catalog lists its featured GPS manufacturers, and provides relevant contact information.

Florida-based marine-electronics retailer offers links to the prices and specifications of various brand-name global-positioning systems.

Navigation-equipment clearinghouse sells global-positioning systems manufactured by Garmin and Magellan. Catalog also includes GPS accessories.

Clearinghouse of GPS-related electronics spotlights its boating-specific equipment. Includes a secure online order form.

Browse a catalog of marine navigation and GPS equipment, FishFinders, chartplotters and night vision gear. Brands include Garmin and Magellan.

Angling-supply resource spotlights several marine-specific GPS receivers. With screenshots, products specs, prices and an online order form.

Consult this retailer's catalog of portable global-positioning systems. Includes photos, product descriptions and prices.

Nautical-navigation resource includes profiles of numerous GPS receivers and applications. Includes an online order form.

Peruse a comprehensive list of marine-specific global-positioning systems made by various manufacturers. With product specifications and prices.