Big deal. I'm not yet sure why, actually. I used Twitter for the first time on Monday, April 19, to keep track of the Boston Marathon. I liked that. Then I found out how to have the title and first few words of each new blog post sent to Twitter, as if I had "tweeted" it.
We'll see what comes of this. Twitter seems to be a good way to keep track of people if both are on-line and on Twitter, or if one is on Twitter and the other one posts to a blog. Otherwise, email might be better.