The website Cultural Monuments in Serbia presents a digital catalogue which contains documentation on cultural monuments and sites of the Republic of Serbia. It was created with the goal to preserve and present a valuable part of the national heritage, which has not been well-preserved in digital form. The paper shows how the results of the examination of users’ expectations (high school students and teachers) were used for technical improvement of the digital catalogue. It analyzes, through the latest results in the development of the digital catalogue of Cultural Monuments in Serbia (2012 - 2013), the significant role of the 1) cultural and research institutions, 2) “fund-help”, as well as 3) users in digitization of the humanity’s shared heritage.