This project is primarily used to add location markers to articles. The idea may be used for many other similar projects. An example is http://www.balispotting.com/, which made use of a different extension working in a different way, and specifically to locate public places.
The use of ContentMap is limited in the sense that it is a bit difficult for non-administrative users to add coordinates. There are several other extensions that may do the same job better than the ContentMap module, but which are unfortunately commercial. Nevertheless, some may be worth the purchase price.