"On the 13th of October in 2003, with the first issue of PLoS Biology, the Public Library of Science realized its transformation from a grassroots organization of scientists to a publisher. Our fledgling website received over a million hits within its first hour, and major international newspapers and news outlets ran stories about the journal, about science communication in general, and about our founders—working scientists who had the temerity to take on the traditional publishing world and who pledged to lead a revolution in scholarly communication... "

Good article on Open Access journals.