<p>I've been watching a few of the videos on Open Access for bio (<a href="http://www.ucopenaccess.org/course/view.php?id=8%5B/url%5D">http://www.ucopenaccess.org/course/view.php?id=8</a>) and was wondering how good they are at covering material. Are they good for review or is it a waste of time?</p>