More and more, social technologies and virtual work methods are facilitating new ways of crossing boundaries in professional development and international collaborations. This paper examines the peer development of higher education teachers through the experiences of the IVBM project (International Virtual Benchmarking, 2009-2010). The e-benchmarking process in which teachers applied authentic learning criteria is described, as are the e-tools (Ning, ACP) and the methods employed collaboratively to develop e-learning competence. Cases came from Finland, Korea, Canada, Belgium and Great Britain. The project formed an international virtual learning community for teachers. In peer development, elements of authentic learning were assigned meaning, development alternatives were considered and the interpretation of authentic learning in different situations and cultures was made concrete. The results promote and inform the planning of e-benchmarking communities and flexible virtual teamwork in professional development and education contexts.