It was here that i found out about Gabbly.
Gabbly is a web application that let visitors of a webpage talk to each other, in real time.
You just have to add http://gabbly.com/ before the url. In the case of this house, you just have to copy/paste this to your browser:

http://gabbly.com/sophias.blogsome.com

Please note that every words will be saved in server so everyone who uses this will see everything that everybody writes

I tested yesterday and it was all right. Today i am experience some problems, but i think the problem is my internet connection (i am on a restricted one).

Edited: You should notice that this web application needs one of the following:
Mozilla/Firefox 1.5
Internet Explorer 6
Safari 2.0.3

(Thanks, PM)