Hi
One good thing that I use Twitter for too is to announce my press or to share my latest articles. Like if I write a new article, I'll post it. It does seem to draw more traffic to the site and article.
I love to follow some pros too. One that I highly recommend is Peter Shankman, the founder of Helpareporter.com. When you follow him you get his urgent media requests. Plus, he's just so fun!
Thanks!
Diana Ennen
Virtual Word Publishing
www.virtualwordpublishing.com