Following is a good post about marketing on Twitter. It's easy to get caught in the excitement of getting followers and having them retweet the messages that you post. However, it's important to remember that marketing is about relationships and providing value to the people that have chosen to follow you.

Social Media Marketing- 5 Power Secrets of Twitter Marketing ...

You should establish in your twitter marketing what we call “Growth Anticipation.” This is simply where people anticipate to GROW following you- and will GROW when they do what you suggest. But this takes time-and you have to prove you ...