Twitter, Inc. is a worldwide platform that enables public self-expression and real-time conversations. It serves as a network that links users to people, information, opinions, and news. The services provided by the company include live commentary, live connections, and real-time conversations. Its application offers social networking and micro-blogging services, which can be accessed through mobile devices and the internet. Additionally, the company can be used as a marketing tool for businesses. For further information about the company, refer to the Beginner's Guide to Twitter.