This document provides an overview of Twitter, including:
1. It describes Twitter as a platform for short-form communication of 140 characters or less, founded in 2006 and growing rapidly due to its multi-channel use and easy API.
2. Various common uses of Twitter are outlined, such as status updates, breaking news, discussions, filtering links, and marketing.
3. Basic terminology used on Twitter like tweets, following, retweets, hashtags and lists are defined.
4. Some tips for using Twitter effectively are suggested, like having a good profile, varying content, and following and engaging with interesting people.