During my Masters and later on my PhD I researched about intelligent agents, context awareness, natural language processing, machine learning, social networks and middleware. As an outcome of my PhD research, awarded as Best PhD Thesis according to the Brazilian Computer Society in Congress on Computers in Education 2013, a framework that can be used to create personalized virtual learning in Web-based systems was specified and developed. The framework combines key modules of a traditional conversational ITS with the ability of individual student users to access personalized content via social media (e.g. Facebook, Twitter, Yammer) and heterogeneous Web systems (e.g. Skype, Gtalk, Webmail...