Needs of twitter

1 network with other bloggers
2 grow my profile
3 drive traffic to my blogs
4 Thus
improve the quality of your blogs thus
increase revenue

What is twitter

When you join twitter you see other people writing message usually called updating their status that what they are doing now and then place their link below the text.when some one from their follower or some one else saw their tweet(message)if it looks interested to him/her. He/she clicks the link and thus traffic driven to the site.