A Twitter chat is simply a scheduled, moderated, public conversation around a topic. A hashtag is used to monitor the conversation. A Twitter chat is usually run by one moderator and one or more speakers. The moderator asks questions of the speakers and they take turns answering each of the questions and using the pre-determined hashtag. “Listeners” of the Twitter chat can use Twitter’s search page, to search for the hashtag and follow the conversation in real-time.
Another type of Twitter chat involves one moderator asking questions of “listeners”, allowing the listeners to share information and resources with each other.