Twitter, one of the more recent additions to the social networking scene, has grown exponentially. Like most other social networking sites, Twitter is primarily for communication. Twitter allows the user to post unlimited public messages known as "tweets." What sets Twitter apart is that all tweets are required to be 140 characters or less. Many people use Twitter to keep in touch with friends and coworkers. Businesses also use Twitter to make announcements or give updates on new or upcoming products. In general, people use Twitter because it's a quick and easy way to get information out without having to write long-winded e-mails or make telephone calls to everyone they know.
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