Connected2.me is an ajax simple chat site, where users can easily create a profile, and share it's link with their friends, to allow them to chat with the creator anonimously. The site also features a shuffle feature, where a fixed quantity of the online users appear.
I want a site just like this (excepting the "pay to appear in homepage" feature and the Facebook login), so you have to try the original site before doing it. It should have every feature that website has. >The budget limit is small as the website is really simple