Regular users of Gmail have no doubt noticed the new entry just below their Inbox tag called Buzz - if you haven't yet, chances are you will soon. From what I can tell it seems to work a lot like Twitter and Facebook status updates do: there's just enough room to post two or three sentences, links to other pages, comments on Buzz posts, and other stuff like that. It also hooks links to other sides listed in your Google Profile (if you've set one up) so that if you update one of them, it automatically posts a link in your …