This is one video from an excellent series of videos on the benefits of Open Access by PLoS. There are several videos in this series discussing OA from the community angle.
PLoS stands for the Public Library of Science and rhymes with floss. As Carl Zimmer, a science writer for the New York Times said, “PLoS is now a real powerhouse in the world of scientific literature”. PLoS is committed to making the world’s scientific and medical literature a freely available public resource.