To be fair, there is a dark underside to "open access".<p>One of the most significant open access publishers creates $100 million+ in value a year but, 20 years after inception, struggles to find a sustainable source of just $400,000 a year to fund operations. Few of the 100,000+ regular users have any idea of the lost opportunities and problems of talent retention that this site has had.<p>Perhaps I'm reacting to my most recent experiences with the "free" business model, but Tom Reller is right to say that what Elsevier does is more sustainable than most open access.