Currently virtual learning environments (VLEs) and learning objects (LOs) repositories are under active implementation into general education and vocational training system in Lithuania. The article aims to review LOs interoperability standards development tendencies as well as to compare VLEs under existing well-developed pedagogical and technical evaluation frameworks in order to suggest the most suitable one for wider implementation to support active socio-constructivist pedagogies in in-service teacher training and overall in Lithuanian general education and vocational training systems.