As much as I think the discussion threads are a wonderful means for all to communication within the online class setting, I also feel they pose a lot of challenges. As the instructor, I have often find it difficult to engage the students in a conversation. I find a lot of learners come in to the discussion, post what they are required for the week then never return. In an effort to deter this type of behavior, I now include in my class policies that I may ask questions in response to their discussion posts. They should respond to these questions by the end of the week and points will be deducted from their discussion grade for the week if they do not. I find this encourages the student to check back and be more interactive within in the discussions.