Cartaro is a Drupal distribution that provides support for spatial data. It seamlessly combines:

This module provides a field for geospatial data that can be added to entities. In other words end users can add points, lines or areas on a map as part of a content. This module is similar to the Geofield module, but spatial operations and data storage rely on PostGIS.

The PostGIS module goes well together with the OpenLayers, OpenLayers Editor and the GeoServer modules. It is also part of the Cartaro distribution.