Recently Lynda.com changed their interface as they introduced their Lynda Campus product. The good new is that for the first time this lets users track which videos they have watched, bookmark videos to review later, and save certificates of completion when they finish tutorials.
Unfortunately, to do this Lynda.com makes it mandatory for users to create a personal login before they can go to the tutorials. Poor design makes it look like a user is signing up for an individual account with Lynda.com. Don't worry, once you create a login, you will still have access through your AU affiliation and there will be no charge.
For information about accessing Lynda.com, you can search ALADIN for Title = Lynda.com.