Wikipedia
Terrafly
TerraFly is a web-enabled system designed to aid in the visualization of spatial and remote sensed imagery. TerraFly users visualize aerial photography, satellite imagery and various overlays, such as street names, roads, restaurants, services and demographic data. Users virtually "fly" over imagery via a web browser, without any software to install or plug in.
Terrafly's tools include geospatial querying, data drill-down, interfaces with real-time data suppliers, demographic analysis, annotation, route dissemination via autopilots, customizable applications, production of aerial atlases and application programming interface ( API) for web sites.