GeoContent can show maps using three different renderers:
- OpenLayers plain
- OpenLayers olwidget
The two OpenLayers-based renderers are very similar and differ only for balloon style and the availability of clustering options. They can use base layers from Google, Bing, OpenStreetMap etc.
The Google renderer uses the standard Google Maps API v. 3.
This page shows the same map with the three different renderers, TOC position is set to "right":