I've received some enquiries about how I deal with Twitter feeds in MOOCs. One of the ways we support community is to reprint tweets in our newsletter. In theory, this is against Twitter's terms of service, which says tweets cannot be stored anywhere outside of Twitter. In practice, it's not, as people own their own tweets (and store them and share them frequently on their blogs, in emails, and wherever they fele like storing them). People in one of our MOOCs tell us clearly they want their tweet included in the newsletter by using the course-specific hashtag. So this article is directly relevant. To summarize: "Twitter has argued that it doesn’t own a user’s tweets, but at the same time the company wants to control what users do with their content so that it can monetize the network. There’s an inherent conflict there that is becoming increasingly difficult for Twitter to avoid."