Using new technologies in the academic field has become more and more visible in Poland in the recent years. In the past, digital learning resources were used as supplementary materials helping to support face-to-face instruction. Nowadays, we have the opportunity not only to apply "traditional" methods but also to use more sophisticated approaches such as e-learning and blended learning (BL) to provide more effective and flexible ways of delivering knowledge to students. E-learning can become a very effective part of "blended learning" where a part of the course content is delivered online. This article provides a brief overview of the basic issues that need to be taken into consideration while designing a blended learning course. More precisely, it focuses on the e-learning aspect of blended learning. It also aims at providing the reader with adopted solutions and encountered problems in the process of BL course design.