In recent years, universities have adopted eLearning solutions as part of their learning resources to provide students with digital and multimedia content. The effect of this strategy is that the educational materials in electronic format are replacing in part (or as a whole) the classic printed books. In this paper we present our strategy of integrating in a single resource an electronic book with a companion eLearning website. Instead of considering the textbook and the eLearning website as two distinct resources that have to be adopted by the students of the course, here we propose a unified approach that integrates both in a single resource. Categories and Subject Descriptors K.3.1 [Computer Uses in Education]: Computer-assisted instruction General Terms Documentation, Human Factors Keywords eLearning, eBooks, companion website