The document discusses the role of discussion in online learning and moderating discussions. It provides examples of discussion tools and explains that discussion allows for asynchronous learning. As a moderator, one needs to provide rules, offer prompts to start discussions, rephrase points to clarify, link ideas, and draw conclusions. The moderator also encourages learners to take on moderation over time. Group activities can be used for assessment if they promote participation and interaction. Managing topics, responsibility and participation are issues to consider for ongoing online communities. A virtual facilitator job may include stimulating discussion, assessing participation, and additional online tasks.