Are you a disgruntled student, teacher, or professor, dissatisfied with the knowledge industry and the bureaucratization of intellect?
Are you concerned about the role of the intellect not just as a form of specialized professionalism but as equipment for living?
Are you interested in the intellectual life of society as a whole, in its informal and extra-institutional aspects as much as in its formal institutions?
Do you strive to make yourself and people around you more conscious and critical thinkers?
The other autodidact link failed. Plus this one is better.