This document provides an overview of Twitter and how companies can use it for marketing. It discusses Twitter's history and features, noting it was founded in 2006 and allows posting of text, photos, and videos. The document then outlines several interesting facts about Twitter's growth and usage. It also describes how companies can benefit from marketing on Twitter by gaining customer attention, understanding brand sentiment, and targeting specific audiences. While competition can be challenging, the conclusion asserts that social media marketing will become increasingly important as more people engage with platforms like Twitter.