Dante Certification - you'll need to create an account here and login to do the Dante certification as part of this class.
Shure Audio Institute - you'll want to spend a bit of time here taking advantage of the online resources. Especially of interest should be the Wireless Masterclass and Wireless Workbench classes. These will be assigned for homework over the course of the semester.
Speaker Placement Basics from Astral Sound. Ties in a bit of critical distance and such.
ProSoundWeb Study Hall: good resource for live sound topics.
Live Sound International: Free magazine about live sound topics.
FOH: another free mag dedicated to live sound topics.