The difference between Twitter and other social media sites is that this site offers different platform in which to share your information. While some sites allow you to write long and meandering posts, Twitter encourages succinctness and a focus on sharing information quickly rather than through exaggerated posts. This is great for a variety of reasons, some of which are expounded upon below.
Firstly, by creating shortened and quick snippets of information, you are providing a message that is quick and to the point. You are sharing it so that people can read it without having to spend a great time weaving through information and finding what it means. This also increases the chance that your page will see a great number of retweets which can help you to build your brand. Whether you have your page setup to allow for automatic retweet or are looking for something more organic, this information can catch on quickly and really give you a lot of promotional value. Twitter also allows you to connect with an audience and build a far reaching audience that is awesome to your brand and to really build relationships. If relationships matter, then, Twitter is a platform that you should assuredly pursue.