The scientific journal Nature presents some discussions on the Open Access paradigm:
Nature Web Focus on "Access to the Literature" http://www.nature.com/nature/focus/accessdebate/
The Green and the Gold Roads to Open Access http://www.nature.com/nature/focus/accessdebate/21.html (Harnad, Bordy, Vallieres, Carr, Hitchcock, Gingras, Oppenheim Stamerjohanns & Hilf)