Adding to the collection of material to describe the history and development of digital editions, the second phase of C21 Editions project engaged in semi-structured interviews with an extensive group of 50 experts and stakeholders from a range of relevant disciplines, including digital scholarly editing, digital publishing, archiving and preservation, interface design, and creative practice. As the field of digital scholarly editions is by now old enough to span entire academic careers, these interviews represent a wealth of insight into the developments of the field. The interviews have been coded and allow for automated analysis of this novel primary source. This poster will present the preliminary results of analyzing the coded interviews with a special emphasis on digital publishing, open data and open access and research infrastructures.