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 you can unblock Yahoo Mail while at school - Week 38, September 2009

We post lists of unblockers about every week, so subscribe to our RSS feed to stay updated!

How does it work?

Unblockers are like a gateway that sit between your computer and the site you're trying to visit. The unblocker goes to the site you want instead of you, loads the page, and sends it off to you. So the site you want to be on only sees the unblocker's IP. So in effect you are visiting websites in an indirect manner. Internet filters think you are just visiting the unblocker, not the real site.

Another way of unblocking Yahoo Mail in school is by setting up your own unblocker tool. This is more advanced than using someone else's unblocker but it's a lot nicer to have because you're in control. Explaining how to do this is not in this guide, but you can find a guide here: Get on Yahoo Mail at school. You can also make money from your unblocker by putting ads on it.

Here are some unblockers you can use to unblock Yahoo Mail:
www.webrootspy.info
www.hopfast.info
www.free-ways.info
internettoy.info
www.havein.info