Twitter is a service for friends, family, and co?workers to communicate and stay connected through the exchange of quick, frequent answers to one simple question: What are you doing?

Share your thoughts and find out what people are thinking.

Plurk is a social journal for your life

Tumblelogs are the easiest way to share yourself.

Create your own microblog and connect with your friends. Post from the Web, by SMS, or from desktop clients. Add comments, use icons, link Webfeeds. Take it with you on your phone.