Twitter is known as the SMS of Internet. It is a micro-blogging platform allowing you to share content in only 140-character long messages.
It counts over 200 million active users, 340 million Tweets generated daily, and over 1.6 billion search queries each day. It is a fantastic platform to reinforce your brand image, grow your prospects base, engage with customers, reply to their inquiries, run promotions, and much more. [Updated Sept, 10th 2013]