QGIS - QGIS is a desktop geographic information system, or GIS.
Heavens Above - Website for tracking Satellites, Space ships and other space objects.
Google Maps - Find local businesses, view maps and get driving directions in Google Maps.
See A Satellite Tonight - Free web app to explore satellite locations.
Mapbox - An open source mapping platform for custom designed maps. Our APIs and SDKs are the building blocks to integrate location into any mobile or web app.
Celestia - Real-time 3D visualization of space