Google
Google Maps
Explore the entire world or your local area through Google's maps, Street View photos, satellite images, and in a 360-degree panorama. Take a virtual field trip to an Arctic town or a Pacific island, a famous landmark, a bird sanctuary,...
Other
Map Channels: Dual Maps
"Dual maps combine Google Maps, Google Street View and Microsoft Bing Maps into one embeddable control" that allows the user to customize to fit their needs.