I was using Google Maps,Google Earth,Map my India and many such innovative products.Wikimapia and wikipedia has been a regular spot to visit.
The most appealing piece of technology i found recently is the street view in Google Maps!!
Its so amazing to check out the streets of London!
The images are updated by a moving van time to time.
The usage is cool for one and all,you can check your home from any where in the world!
I also loved the Latitude on Google maps for Mobile.