BASINS (Better Assessment Science Integrating Point & Nonpoint Sources) is "a multi-purpose environmental analysis system that integrates a geographical information system (GIS), national watershed data, and state-of-the-art environmental assessment and modeling tools into one convenient package."
The DLESE is a "distributed community effort involving educators, students, and scientists working together to improve the quality, quantity, and efficiency of teaching and learning about the Earth system at all levels." The web site offers access to Earth data sets and much more including educational resources and support services.
