You've heard it before, and will hear it again: In order to have an effective social media presence you need to be active on more than one network. Many businesses realize this fact and are active on networks such as Twitter. The problem with Twitter, however, is that it can be difficult to master.
Marketing is an incredibly important lifeline and function of nearly every business. With successful marketing a company will likely be more successful and able to grow. Nowadays, social media has become a large part of marketing, especially platforms like Twitter.