Marble!

World Wind lets you zoom from satellite altitude into any place on Earth. Leveraging Landsat satellite imagery and Shuttle Radar Topography Mission data, World Wind lets you experience Earth terrain in visually rich 3D, just as if you were really there.

GMap.NET is great and Powerful, Free, cross platform, open source .NET control. Enable use routing, geocoding, directions and maps from Google, Yahoo!, Bing, OpenStreetMap, ArcGIS, Pergo, SigPac, Yandex, Mapy.cz, Maps.lt, iKarte.lv, NearMap, OviMap, CloudMade, WikiMapia, MapQuest in Windows Forms & Presentation, supports caching and runs on windows mobile!

Site that lets you compare the satellite imagery offered by NASA, Yahoo Maps, Microsoft Virtual Earth and more.

Mapline is the simplest mapping software on the planet! Be empowered with map visualizations from Excel spreadsheet data to optimize logistics, enhance market planning, identify growth opportunities, or mitigate market risks. Create your first map now!

This program allows work with any maps service if you can describe getting picture by longitude/latitude(if you want you can write config file or simplepascal script to describe how obtain needle photos). "In package" program supports many "main sources"("maps" in main menu) such as GoogleMaps, VirtualEarth, Yahoo satellite photos etc(some part of maps are local - for Russia, Ukraine and Belarus) And there are functionality of "layers" - sources that can been used independently and simultaneously(Wikimapia, Water resources, Panoramio etc). Also there are placemark manager, possibility to work with connected GPS-device, exporting layers and batch loading.Program is portable and has own cache so it can works offline. »

Libmini is free software that displays geographic terrain data at real-time. This is an example application of integrating libmini in the Qt user interface. The application, the libMini QTViewer, primarily uses libmini viewer functions but provides additional camera control. It is free software licensed under the GPL.

TerraExplorer is a powerful, easy-to-use tool for exploring, editing, analyzing, annotating and publishing photo-realistic interactive 3D environments. Users can navigate through high resolution 3D world environments created by fusing aerial and satellite photography, terrain elevation data and other 2D and 3D information layers. Basic editing capabilities are available as well as advanced terrain analysis tools. When embedded in a SkylineGlobe web package, the standard TerraExplorer Viewer serves as a SkylineGlobe viewer, providing advanced API capabilities. »

EarthBrowser is an innovative earth simulation that combines an easy to navigate 3 dimensional globe with real-time weather conditions and 7 day forecasts for thousands of locations worldwide. Live earthquakes, hurricanes, webcams, volcanoes and cloud animations are just some of data that is available in an instant. A great aid to teachers for visualizing earth and space with their students. A must have for anyone who loves to watch the weather.

Earth View is a collection of the most beautiful and striking landscapes found in Google Earth.

MapSphere is a manageable way to view and organize geographical data of different kind. This might be raster maps and satellite imagery from various sources, your own information received from GPS, tracks of your friends, whatever you want.

UrtheCast is developing the world's first near realtime HD Earth video stream, via two cameras mounted aboard the International Space Station (ISS).