Twitter is kind of fun.
After you register, you can send Twitter an IM or a text message from your cellphone, and anyone can check your "current status" at the Twitter site or wherever you've embedded the right code snippet.
Like over there in the sidebar. :-)
Hint: Click the arrows to see the recent history - and if you're a Twitter user (or inclined to become one) please let me know so's I can "friend" you.