This document provides an introduction to using Twitter, including what Twitter is, how to tweet, how hashtags work, and how businesses and organizations can use Twitter. Twitter is described as a real-time information network where users can post tweets of up to 140 characters with links to share stories, ideas, opinions and services. It allows people to connect with others and follow topics by using hashtags. The document also lists some popular hashtags like #Leadership and #Pittsburgh and provides resources for businesses on how they can use Twitter to connect with customers, share information, get feedback and build relationships.