I've only recently jumped on the Twitter bandwagon.
  I didn't really see the point of "micro-blogging.
"  It just seemed like a bunch of drivel--who wants an hourly update of what you are doing? Two things changed my mind.
  First, I joined Facebook and got used to updating my status.
  Second, I notice virtually all of the serious bloggers were using it.
  So I finally decided to start my own account.
Now I see how beneficial it is for bloggers.
  Let me share just a few ways Twitter can help: 1.
  Advertising multiple blogs in one place: Twitter gives you one place to share updates from all your blogs (or from other blogs if you like).
  What most bloggers do is use a website like tinyurl.
com to shorten the address, then post updates on their twitter account.
  It looks like this: You can also sync your Twitter account with FaceBook--Twitter updates automatically appear in your Facebook status.
  This allows you to advertise new posts on two major networks.
 2.
  Gaining followers: Twitter is an online community.
  Users often search for other users with similar interest or related posts.
  The more followers you get, the more potential blog readers you'll have.
  Note: think of the keywords you use when you post updates about your blog--this can help people find you.
  3.
  Finding content:  Following other members can help you find useful content for your blog.
  As mentioned they often post articles, links to videos, and other links which can help you.
I'm sure there are more benefits to Twitter, but these three are the most significant for me.