Geography

"Population Statistics for Countries, Administrative Areas, Cities and Agglomerations – Interactive Maps – Charts"

An online collection of more than 114,000 digitized, high-resolution maps that "focuses on rare 16th through 21st century maps of North and South America, as well as maps of the World, Asia, Africa, Europe, and Oceania". The collection receives regular updates of new materials, so it is constantly growing.

"The OldMapsOnline Portal is an easy-to-use gateway to historical maps in libraries around the world. It allows the user to search for online digital historical maps across numerous different collections via a geographical search. Search by typing a place-name or by clicking in the map window, and narrow by date. The search results provide a direct link to the map image on the website of the host institution."

This site contains local, national, international, historical and topographical maps. The Cartographic Reference section provides links for distance calculators, gazetteers, glossaries and guides, latitude and longitude, map projections, map scale, sun & moon rise/set calculations, tides, and time zones. Links to other map resources can be found under General Map Sites.

Site from the US Department of Agriculture (USDA) that aims to deliver scientifically based soil information. Soil survey maps and text, status maps, lab data, soil climate data, and GIS ready datasets (SSURGO, STATSGO).

"The USGS is a science organization that provides impartial information on the health of our ecosystems and environment, the natural hazards that threaten us, the natural resources we rely on, the impacts of climate and land-use change, and the core science systems that help us provide timely, relevant, and useable information."

Population and geography data from the Census Bureau. Data is available in form of maps, tables, and reports.

"The World Factbook provides basic intelligence on the history, people, government, economy, energy, geography, communications, transportation, military, terrorism, and transnational issues for 266 world entities."

This is a free online encyclopedia containing articles written by scholars, educators, professionals and experts in various scientific fields.

"Provides access to official statistical information produced by the Federal Government. Links to 100 agencies that provide data and trend information on such topics as economic and population trends, crime, education, health care, aviation safety, energy use, farm production and more."

Weather and climate research.

This is a free online encyclopedia containing articles written by scholars, educators, professionals and experts in various scientific fields.

"Contains monetary damage data on hurricanes, tornadoes, and floods, as well as composite data for all three weather events, adjusted for both inflation and inflation and wealth. The Sourcebook also contains data on lightning casualties, fatalities and injuries and similar data for other extreme weather events, such as hail, winter storms, wind storms, and heavy rainfall."

Provides historical climate data, recent weather events and current weather conditions.

"Provides weather, water, and climate data, forecasts and warnings for the protection of life and property and enhancement of the national economy."

Created by the Center for Ocean-Land-Atmosphere Studies, the site provides information about current atmospheric conditions, weather forecast, short-term climate outlooks and hurricane potential.

Satellite images focusing on weather and environment factors.

An agency of the UN, this site provides weather related information from around the world. Major topics covered are weather, water, climate and the environment.