Well, for one thing it is kinda addictive. Basically, short messages and photos are exchanged among millions of people around the world. People and Organizations share things about what they are doing, what they are interested in and what is going on ~right now~ Twitter is always live and usually very interesting.... if you have 'followers' then whatever you send out will be read by all of them instantly. If you are 'following' someone else, then you get to see what they are up to - along with everyone else. It is an easy way to reach millions of people with steady updates that are easy to make.. read on... Twitter.com has ways to make sending Tweets real easy.