lyndaCampus offers free access to 87,000+ video tutorials. Check out this recent DukeToday article for tips & tricks and insight into how lynda is being used at Duke: http://today.duke.edu/2013/02/lyndatechtips?goback=.gde_4170679_member_213293041
For information on accessing lynda.com at Duke, go to: http://training.oit.duke.edu/lynda/