openstreetmap

• http://www.openstreetmap.org/ adresinde bulunan, wiki tarzında herkesin katkıda bulunabileceği harita. kendilerini şöyle tanımlamışlar : "openstreetmap is a free editable map of the whole world. it is made by people like you. openstreetmap allows you to view, edit and use geographical data in a collaborative way from anywhere on earth."