Test Your Geographic Knowledge - Fun - Interactive map quiz

Geosense - test your geographic knowledge individually or against someone online.

US Census Bureau QuickFacts - "Quick, easy access to facts about people, business, and geography. 

Fact Monster Almanac - Find information on US maps, geography, national landmarks, and population.

National Geographic for Kids - Homework help for these topics: animals, history/culture, and maps/geography.

Prentice Hall DK World Desk Reference - Information on countries of the world including map, climate, resources, economics, health, spending, education, tourism, environment, and world rankings.

The BBC Country Profiles - Profiles "provide an instant guide to history, politics and economic background of countries and territories, and background on key institutions."

Satellite Images Observing the Earth - Satellite images from the European Space Agency.

Experience Washington - The official site of Washington State Tourism. This site includes an interactive map as well as information about appealing destinations in the state.

National Atlas - customize your own US map; US Department of the Interior

National Geographic Student Atlas - "More Than Maps-Find Country and Culture Profiles, Photo Galleries, and More" Interactive.

Perry-Castenada Map Collection - This extensive map library is hosted by the University of Texas. Here you will find more than 11,000 political, topographical, and historical maps of the world, continents, and countries.

Library of Congress Searchable Map Archives - Digital collection of some maps held by the Library of Congress. Categories include General maps, Military Battles and Campaigns, Transportation and Communication, Conservation and Environment, Discovery and Exploration, Cities and Towns, and Cultural Landscapes.

David Rumsey Historical Map Collection - "This primary source collection contains over 13,600 rare maps, primarily eighteenth and nineteenth century maps of the Americas."

Enchanted Learning Geography Glossary - Ever wonder what's the difference between a marsh and an estuary, a gulf and a sound, an isthmus and a cape, a lagoon and a lake? Here's a glossary of geographic features to help you. 

Geographic Names Information System - enter a geographic feature and this database will list places in the United States.

Lat-Long.com - enter a location in the United States and the site will give you its latitude and longitude.