why do I try geo-tagging ?

Ok, so I have this ideea of a startup. You have to "put on map" stores and points of interests in a city - for example in Bucharest.

Let's say you need to find out a bicycle shop in Bucharest, and you have no ideea where to find one. Well, you go to my page and search bicycle, and you get all the data: where the shop is, what's the gps location, what do people think about that store, etc.