Introductions to Philosophy - between the University of Edinburgh on Coursera and Nigel Warburton's basics

After reading some philosophical works, some more literary such as Camus' The Stranger, others more academic or theoretical as The Laws of Plato or Nietzsche's Beyond Good and Evil (reviewed here), I decided it was time to have a proper introduction to philosophy as a whole. I've always been interested in some philosophical fields of study but until recently I felt I knew too little of what it means to be a philosopher nowadays. In order to address this problem I found two simultaneous soluti...