I think there are many convincing arguments for using PostGIS but I am interested in showing people examples of websites that use PostGIS and OpenLayers.
Some examples that I have seen are:
- foursquare
- CartoDB
- Vizzuality (many examples)
- WalkScore (as far as I can tell)
Are there other examples that show good examples of this combination? I'm not sure if any of the sites that I listed are using OpenLayers as a central part of their functionality but I believe that they all use PostGIS.