Yes, the background of OER is rich.
Denis Diderot (1713–1784) founded of the Encyclopédie, and speculated on free will is a kind of model for Jim Wales and Wikipedia.
Free Adult education and Free software Foundation are models for delivering content available for all, enabling anybody to access to the knowledge.
But, to me the idea of Wikiversity is even older. Giving the opportunity to meet people, exchange with other, increase his scholarship, through questions, and examining our own beliefs should encourage us to read the Socrates article.
In any case, as Luca noticed the reading of this background remind us the responsability of the teacher to educate, and give opportunity to everybody to exploit his own potential.