The Center for International Earth Science Information Network, a center within Columbia University's Earth Institute, offers downloadable GIS data, maps to various international countries, and a variety of links to similar external sites, free of charge. Includes links to interactive mapping tools and databases.
Cornell's Geoscience Information Systems page discusses projects that are being developed at the university. There is a link to their Digital Earth Project and an Interactive Mapping Tool. Areas of special interest covered more thoroughly include; the Middle East, North Africa, and the United States. This site also includes a listing of Cornell's Digital Earth Metadata pages.
Covers major floods from 1985 to the present. Includes downloadable maps with corresponding tables of flooded regions. Also included is the World Atlas of Large Flood Events.
This site features TerraVision which, "is an Open Source distributed, interactive terrain visualization system developed by SRI International." Terravision allows for real-time navigation of a landscape and a 3D view. "The GeoWeb infrastructure provides an open, global, and scalable infrastructure for rapidly discovering information on the Internet associated with a specific latitude/longitude location."
This site creates a storehouse for credible, authoritative information on topics in Earth Science. It features an encyclopedia compiled by field experts who follow strict guidelines regarding the quality of content. Topics are covered in a neutral manner. Users can search by topic, author, or keyword. The site also offers field news and a forum for discussion.
This site offers a wide variety of resources for instructors in geology. The resources can be used in classroom demonstrations, added to a syllabus, or recommended to students for homework help or further study.
Intute's "Earth Sciences" is a comprehensive gateway site for all topics related to the subject. The resources presented on this site are carefully chosen by subject experts and scholars at the University of Manchester and Heriot-Watt University in the United Kingdom. Information is timely, as the database is updated daily. Subjects are organized into 20 headings, with numerous subcategories for each. Users can search a variety of ways, such as through keyword or Boolean logic, and can also narrow a query by using the Advanced Search form, which is fairly exhaustive. The site also offers helpful features such as the "Subject Pack", which provide abstracts and links to Web sites with useful, detailed, high quality information about the subject. Users can also access a comprehensive list of hot topics, natural disasters, timelines, and a special section of "Spotlight" topics within the earth sciences chosen by an expert.
ReliefWeb is "is the world’s leading on-line gateway to information (documents and maps) on humanitarian emergencies and disasters." This site, administered by the UN Office for the Coordination of Humanitarian Affairs (OCHA), provides free downloads from a map collection that is updated daily from over 2,000 sources. Users can track natural disasters and emergencies in any country of the world in their database, which contains nearly 300,000 maps and documents dating back to 1981.
This site includes easy access to information on the following: Africa Population Distribution Database, Asia Population Distribution Database, Latin America and Caribbean Population Distribution Database, Global Population Distribution, Soil and Terrain Database for Latin America and the Caribbean and Brazil Datasets. Formats available are; graphic, report, metadata, or data. USGS and NASA datasets are also linked to.
"A catalog of NASA images and animations of out home planet." There are a few ways to browse including; archives, geographic regions, and GCMD topics. There are different file sizes available for download which is very convenient. This is a great site for anyone with an interest.
A collection of maps (equal area cartograms) from all over the world, this site allows you to resize maps to look at a specific area. Search by map category or using the map index. Map topics include; population maps, land area, food imports and exports, income maps, and many other topics of interest.