The process of digitization represents a twofold challenge both for historiography in general and, in particular, for historical communication research. Digitization has deeply changed research practice as well as the inter-disciplinary communication and is likely to do so in future. The introduction to the HSR Focus presents the collected contributions, which address a twofold conceptual challenge. In a first part, problems and chances of a contemporary history of digital media are discussed. In the second part the authors leave the level of conceptual considerations and turn towards the already established practice of digitization and the supply of sources in the net.