Twitter shares some similarities with other forms of communication. Like the telephone, it facilitates a real-time exchange of information. Like instant messaging, the information is sent in short bursts. But it extends the affordances of previous modes of communication by combining these features in both a one-to-many and many-to-many framework that is public, archived and searchable. Twitter allows a large number of users to communicate with each other simultaneously in real-time, based on an asymmetrical relationship between friends and followers. The messages form social streams of connected data that provide value both individually and in aggregate.