We can use Google Earth to show property/plots for sale and even calculate distances in Km/miles/meters etc.
So many people post property for sale here at Wazua. And equally hundreds ask where is the property located? How far is it from such and such place? Perhaps property sellers should identify the property/plot in Google Earth, then get the coordinates (latitudes and Longitude) and post them here. Interested buyers can then enter the coordinates in Google Earth to see location. For example, if I had a plot at Kitingela Yukos, I would post the coordinates 1°30'27.19"S 36°57'12.50"E. If you just copy these coordinates into google earth, you will see the location of the property.
You can download googlearth at this link if you do not have it.
http://www.google.com/earth/index.html
Or if you like wikimapia, here is the link
http://www.wikimapia.org/