Try this unblocker!

It's new and nobody knows about it yet:
http://tiredstudents.com/

It looks like a lot of school administrator type people have been watching our sources, and are blocking new unblockers pretty much as soon as they're released. So all the unblockers we've posted on this site are probably blocked and any new ones we post from that same source will be blocked very quickly as well. For this reason it'd be best if you try to make your own unblocker instead - you can find instructions on how to do this here: How To Make A Proxy

How to get on Meebo at school - Week 51, December 2009

We post a few unblocker sites approximately every week, so sign up for our RSS feed to stay updated!

How do unblockers work?

An unblocker is a kind of gateway that work between your computer and the site you're trying to visit. The unblocker goes to the site you want in your place, accesses the page, and sends it on to you. So the site you're trying to visit only sees the unblocker's IP. So in effect you are browsing websites in an indirect way. School firewalls think you are just visiting the unblocker, not the real site.

Here are some unblockers you can use to unblock Meebo:
www.roamin.info
bananaproxy.info
rinsemyproxy.co.uk
anonymousspeed.co.cc
www.jimboree.info