aktueller stand und vorstellung: OpenStreetMap
mit Points of Interests zum Einblenden
Mapstraction is a library that provides a common API for various javascript mapping APIs to enable switching from one to another as smoothly as possible.
openlayers/osm combination example
Routenplaner mit OpenStreetMap
Why the 'derivative work' provision of GPL/ShareAlike licences makes them unsuitable for geodata and mapping works.