Michael Meskes is President and CEO of the credativ Group, an industry leader in free software services with offices in six countries. Its Open Source Support Centers employ leading members of a number of Open-Source projects. He has been Open-Source developer for twenty-five years working on different Open-Source projects among which Debian and PostgreSQL are most widely known. He also has done a lot of Open-Source related resentations on all sorts of events doing a lot of Open-Source evangelism.