Hi, It may be interesting to know the number of libraries that use Koha in a country, in particular to defend collective interests of users of Koha. But, because Koha is a (really free and really good) open source project, it can be difficult to know them. There is local or national communities, but no one is forced to enroll, fortunately. Two non-exclusive possibilities can be used to know that, but it implies an intervention of koha-community.org. - The first one is declarative: during Koha installation or later, it can be suggested to the librarian to inform koha-community.org via a form in Koha. - The second is automatic: add a little script in Koha (five to ten lines) that check the current version number of the release, so koha-community.org can check and geolocalize logs and build a map of all implantations in the world. It can be used to inform librarians too that its Koha installation needs update or upgrade, in particular when there are security alerts. In fact, this is a mechanism used by many CMS. For example, on the homepage of http://drupal.org, we can know the number of installations in the world and their location. It uses simply a mechanism that checks the current version and security alerts via a little file containing last release numbers on the central server. Is there a project to implement such things? Sincerely, Daniel Berthereau