Electronic Compass
   Sells magnetic sensor technology for cars, boats, bicycles, and hikers.
   http://www.electronic-compass.com/

GORP - Getting Found - How to Navigate the Backcountry
   An excerpt from Survival in the 90s by Bob Newman.
   http://gorp.away.com/gorp/publishers/menasha/how_surv.htm

How To Use a Compass
   How to use a compass in several lessons plus how to navigate in poor visibility and how to navigate without a compass. Suggested exercises. Tips on buying a compass.
   http://www.learn-orienteering.org/old/

Map and Compass Fundamentals
   Covers the background and history of navigation plus techniques including navigating around obstacles and dead reckoning.
   http://members.impulse.net/~mlynch/land_nav.html

Navigation Technologies
   Maker of digital maps for vehicular navigation. About the company and their products.
   http://www.navtech.com/

OA Guide to Map and Compass
   An excerpt from The Backpackers Field Manual by Rick Curtis, including reference tables, illustrations and real life examples.
   http://www.princeton.edu/~oa/manual/mapcompass.shtml

Reading Topographic Maps
   Online manual on map reading and land navigation based on US Army training materials which includes instructions on maps, compasses and other navigational aids.
   http://www.map-reading.com/

Sun Compass
   Using a horizontal sundial as a sun compass by John C. Fakan, Ph.D.
   http://www.usscod.org/suncomp/suncomp.html

The Bushwalker's Guide to the Galaxy
   Describes techniques that don't require a GPS or compass.
   http://www.ix.net.au/~als/impnav.htm

Wilderness Survival: Field-Expedient Direction Finding
   Describes how to navigate using readily available materials in a survival situation. Includes diagrams.
   http://www.wilderness-survival.net/chp18.php