Today's Moodle Monday is a resource of activities from the Illinois Online Network (ION).
http://www.ion.uillinois.edu/resources/otai/
On this page you will find a plethora of activities with examples to use in your online or enhanced courses. Explore the site for ideas to engage and motivate your learners.
Some examples:
Hypothetical Discussions - students are posed a hypothetical situation to analyze
KWL - Ask students what they Know/What to Know/ and have Learned
Wikis - Group collaboration on a document