Telemedicine is suffering from pilotitis. Only few initiatives manage to scale up to make significant impact. It is challenging to obtain good indicators for dissemination and use, and it is, therefore, difficult to provide evidence that telemedicine projects fulfil the prophecies of reducing cost, improving quality of care and providing equitable access to health care services. The telemedicine mapping project seeks to provide a national contemporary overview of telemedicine initiatives in Denmark. The project is introduced, challenges in keeping the database behind the map updated are presented and attempts to promote rapid update are discussed.