World Wind is an open source 3D interactive world viewer created by NASA's Learning Technologies project and released in mid-2004. It is now developed by NASA staff and open source community developers.

World Wind is 3D "desk globe" which allows any user to zoom from outer space into any place on Earth. By simply using the mouse, the user is able to rotate the Earth or zoom closer to any point on the surface. World Wind leverages satellite imagery and elevation data to allow users to experience Earth terrain in visually rich 3D, just as if they were really there, virtually visiting any place in the world. In actual fact World Wind is truly an interplanetary tool capable of visualizing "other worlds" such as the Moon, Mars, Venus and Jupiter.

Comprehensive information on World Wind is available at World Wind Central.

MadMappers’ web server provides high quality African GIS data freely accessible through the web on a continental scale for the first time ever.

MadMappers' aim is to offer African users an open source customable platform on which to display spatial information relative to their country. World Wind Africa servers will eventually supply a wide selection of data, ranging from topological maps to vector data, from aerial photography and very high resolution imagery to DEMs.

World Wind South Africa ADD-ON