Hey I found this nice article from youngentrepreneur.com and thought of sharing it with you.
If you want to create a solid online presence twitter is a great way to do so. People have been selling products, forming partnerships all with the help of twitter. But if you look for followers in an untargeted way it may turn out to be non productive. Your aim should be to collaborate and build long term relationships. If done the right way this is easily done on twitter.