Since 2002 the Internet extra mural studies are available in PJWSTK. Currently engineer, master and postgraduate studies via the Internet are offered. The teaching is based on the permanently developed in PJWSTK system called Edu. E-learning tools are more and more used in traditional education; The amount of data stored in the platform rapidly increases. Thus the system designers face new challenges. The paper reviews key results obtained over last 10 years of the platform development. Original solutions of passing from classical e-learning platform model to the didactic material repository system are presented. We show how to use repeatedly the same didactic material in variety of educational contexts. The paper discusses also the issues of the material searching in the platform and its integration with other university systems. Presented solutions have been implemented or are being tested.