mapmart.com
MapMart offers a variety of high, medium and low resolution satellite imagery datasets for nearly every location on the earth.
LINK: http://www.mapmart.com/
zoom.earth
Zoom into new NASA satellite and aerial images of the Earth, updated every day.
LINK: https://zoom.earth
a.placebetween.us
a.placebetween.us finds places to meet your friends.
oldmapsonline.org
This portal provides access to a collection of historical maps in libraries around the world. Choose an area of your interest and narrow by date.
wikimapia.org
Wikimapia is an online editable map – you can describe any place on Earth. Or just surf the map discovering tonns of already marked places.
LINK: http://wikimapia.org
openstreetmap.org
OpenStreetMap is a free editable map of the whole world. OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth.
geospatial.com/imagery
Topographic maps, geological maps, nautical maps, imagery. International, global coverage.
un.org/Depts/Cartographic/english/htmain
More than 100 General Maps are available currently. Maps are in PDF format for best display and print results.
LINK: http://www.un.org/Depts/Cartographic/english/htmain.htm
maps.yahoo.com
Yahoo Maps has got options like maps, directions, satellite view, traffic, weather. As of 24 October 2016, Yahoo Maps was no longer showing any data. However from June 2017, Yahoo Maps can still be accessed.
bing.com/maps
Bing Maps is a web mapping service provided as a part of Microsoft’s Bing suite of search engines and powered by the Bing Maps for Enterprise framework. Maps include certain points of interest built in, such as metro stations, stadiums, hospitals, and other facilities. It is also possible to browse public user-created points of interest.