This site features Flash animations that illustrate how the Global Positioning System (GPS) works. The animations depict how GPS signals are derived, compare geostationary and polar orbits, and explain satellites, ground...

From Dr. Ming-Hsiang Tsou at San Diego State University, this geography course "introduces current development of Internet mapping and advanced cartographic skills in Web-based maps." Web authoring tools and internet...

As the American population continues to age, there is a growing concern in some quarters that the government and the private sector might be ill-prepared with the increased demands of an older population. The Brookings...

Founded in 1973, the National Alliance for Hispanic Health advocates on behalf of the well being of Hispanics across the country, and over the years, they have created a number of resources that will pique the interest...

Among the multitude of research programs and centers at the Harvard School of Public Health, there is one that gerontologists and persons with an interest in aging issues will want to explore further. It is the Program...