List of mergers and acquisitions by Twitter

Twitter is an online social networking and microblogging service that enables users to send and read "tweets", which are text messages limited to 280 characters. Registered users can read and post tweets but unregistered users can only read them. Users access Twitter through the website interface, SMS, or mobile device app. Twitter Inc. is based in San Francisco and has offices in New York City, Boston, Seattle, Boulder, and London.