iBerry

promotes understanding of the Geographic Information Science and Technology enterprise (GIS&T, also known as "geospatial"): Data and Information, Scales and Transformations, Census Data and Thematic Maps, Topology and Geocoding, Land Surveying and GPS, National Spatial Data Infrastructure, Remotely Sensed Image Data, Integrating Geographic Data

physical processes that shape the earth & tools used to study these processes

N. Africa & SW Asia, Europe, Sub-Saharan Africa, South Asia, Russia, Middle America, East Asia, N & S America, Southeast Asia, Australia/New Zealand, The Pacific Realm

explores different aspects of natural environment, including atmosphere & hydrosphere (weather & climate, oceans), lithosphere (landforms, earth processes) & biosphere (plants & animals, primarily), emphasizes relationships: study guides, web resources