When I joined in has as a software engineer, one of my first mentors was Prabath Siriwardena. Although it was just 5-6 months in his team, I learnt a lot from him, ranging from writing good code to, team work. He recently acquired his MSc in computer Science from the University of Moratuwa. and today works at WSO2 in the open id integration team. You can listen to his pod cast on Open id here, in this talk he mentions about what open id tries to solve and it's advantages.