This report presents the findings and analysis of a survey conducted between 24 March and 7 May 2023, exploring the socio-technical characteristics of two prevalent community-driven initiatives in Digital Humanities, namely the International Image Interoperability Framework (IIIF) and Linked Art. With 79 participants, the survey investigates the practices and activities of individuals involved in these initiatives, which focus on developing and maintaining shared application programming interfaces (APIs) for enhanced interoperability and access to cultural heritage resources. It also seeks to situate these initiatives within a broader discourse of scholarly movements and principles. Additionally, it serves as a preliminary means of exploring the prospective impact of Linked Open Usable Data (LOUD) and its underlying design principles in the cultural heritage field.