Lynda.com has a great feature to assist in organizing all the great course one will want to take with playlists.
Playlists can be created in the iOS app or the web browser version of Lynda.com. It can be more accessible in the iOS app, however the web browser version eases the list arrangement & organization more efficiently. As always, your experience may vary.
The feature is new as of 01/2013:
Note: Courses may be part of multiple playlists