Best of all Twitter is an amazing tool for business owners and consumers.
The thing to understand about Twitter is that Tweets (your statuses on Twitter) occur in real time, making it an up-to-the minute medium.
For example, if you are the owner of a sandwich shop, you can tweet to your customers about a new sandwich or lunch special. You can tweet this information a few minutes before noon, when business people are thinking of where to go to lunch. Since Twitter is in real time, you can attract your business right away.