Pingbox

Chat privately with visitors on your social network profiles, blog, or website through Yahoo! Messenger. Checkout Pingbox of Yahoo.

I would have happily added it to this blog but the minimum width is 180 and mine is only 150. It will mess up my side bars. And besides I'm concerned about privacy.. haha.. weird thing to say, especially for someone keeping an online blog. But, anyway, maybe u will find it fun.

Let me know if you've tried it. :)