Current outages on Canvas
It appears that Canvas is currently down because of an issue with Amazon Web Services. Piazza has also been impacted by this outage, but as of this writing it does appear they're back up.
You can watch the most recent lecture videos outside of Canvas, here: http://dwa15.com/videos.php
Also, the notes on Github are still accessible: https://github.com/susanBuck/dwa15-spring2017-notes However, because the images from the notes are hosted from Amazon Web Services, they're not loading.
I'll keep an eye on this outage and, if necessary, will extend quiz deadlines (Assignment 2 and Lecture 5) as needed.
Update: The issue was resolved within a few hours and all systems appear to be working fine now