I love the GPS comic :-) Humor is definitely great!
What I've noticed is that participation has become less than what it was during week 1. There is still enough participation to stimulate a thought process in me and make me come into Moodle to post a response of some sort, but there definitely isn't as much quantity as before.
I'd be interested in hearing other people's opinions (positive and negative!) and hearing about where they have problems with the materials or concepts. Much learning comes not only from understanding what you read, but also about how other people react to it! :-)