Abstract The portability of educational software is defined as the likelihood of software usage, with or without adaptation, in an educational environment different from that for which it was originally designed and produced. Barriers and research relevant to the portability of electronic learning resources are discussed and organised into a portability‐limiting factors model. With the increase in number and scope of networked learning environments, portability issues take on a new dimension. Using electronic (study) books as an example, the portability problem space of networked learning environments is explored.