One of several websites that allow you to make comics with your class is www.bitstrips.com. What I like about this one is that you can personalize the character to look a little like yourself or some famous person. Then you can change the expression, posture and gestures in each frame. With low-level learners you could use these little avatars to practice describing people and their expressions. And then, of course, you can create little stories. It gets a lot more fun when everyone in your class has created a comic avatar and then invite each other as "friends" (this is social networking, after all) and can then use those "friends'" avatars in their Bitstrips. Bitstrips can be embedded in a blog or shared by email.