The aim of this paper is to identify measurements of learning efficiency and learning effectiveness of blended learning and to analyze drivers of learning effectiveness and learning efficiency in learning environments of corporate education. Therefore a literature review of the AIS Electronic Library is done. With a single term search including "learning efficiency", "learning effectiveness" and "blended learning" 14 papers are identified. Regarding learning efficiency, less research is available so that only few measurements are available and no drivers are identified In contrary, learning effectiveness is in research focus: 10 measurement indicators and 16 drivers are analyzed. Few of these findings concentrate on blended learning environment in corporate education. In conclusion, an evaluation framework including learning effectiveness and efficiency for blended learning environments of corporate education is desirable. This paper discusses opportunities for future search based on the state-of-art knowledge published by the AIS Electronic Library.