New answers tagged web
There is http://openlayers.org/ which should provide exactly what you need. As seen in the example on http://openlayers.org/en/v3.0.0/doc/quickstart.html it creates a scrollable map like google maps(but can do other types as well) and allows to place custom marker and overlays. It does not help you with the map tile generation - it is only there to use map ...
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