The British Library and the National Library of Australia are each involved in national Institutional Repository initiatives. These are Sherpa and Arrow, respectively. In each case, their role includes, among other things, providing a home for materials from independent researchers, those who will not have an institutional home for their work. Check out:
Libraries are not ends in themselves, but serve the interests of the organizations of which they are a part. As university emphasis varies around research, education and career poles, we can expect to see libraries evolve to support those emphases more strongly.