NASA's Visible Earth catalog of NASA images and animations of our home planet.
  http://visibleearth.nasa.gov  [Site Details]

Celebrates International Earth Day. Millions of people around the world are reached through this internet sites.
  http://www.earthsite.org  [Site Details]

Information on the earth sciences, with a main focus on earth statistics, plate tectonics, and movies.
  http://www.solarviews.com/eng/earth.htm  [Site Details]

Offers maps and satellite images for complex or pinpointed regional searches.
  http://earth.google.com  [Site Details]

Monitor regional and global changes on our planet almost as they happen.
  http://earthobservatory.nasa.gov  [Site Details]

Information about geology and earth science for students, teachers, geologists and anyone who is interested in the earth.
  http://www.geology.com  [Site Details]

An initiative to advance Earth science. Provides many on-line tools and services in support of NASA's mission.
  http://www.earth.nasa.gov  [Site Details]