Of course, discussions play a key role in SharePoint's new Community Sites. Users can opine on topics both professional and personal. SharePoint provides incentives to promote participation, such as reputation building, likes, gifted badges, and best replies. Here's how it works: You're browsing a community and answer a question posted by your colleague Jenny, who's notified by email of your response. Jenny marks your answer as a best reply, which earns you reputation points and improves your status within the community. The point system is set by each community owner or moderator. The Members page shows your reputation score.