Why does Urbo.ro uses OSM?

Urbo.ro is a location-based, community oriented business directory in Romania. When developing Urbo.ro, there was a choice to be made on what mapping service to use. The map is an important feature of the site and therefore the choice on map providers was critical. The considerations in choosing a mapping provider were as follows:
• Mapping coverage of Romania;
• Accuracy of the street data;
• Ability to contribute and correct the data.

Read more here: http://corporate.adulmec.ro/blog/2010/urboro-openstreetmap-fan