In the past I've had a few people ask to use my site as an example of technology in the classroom. Well this month the site appears to have been hacked by a student or someone who likes pranks. I started seeing inappropriate postings on the class chat board using a bogus yahoo account. They have also signed up for spam, illegal file sharing and other explicit things listing the class site as the interested party.
For this reason I'm closing it down until I can trace the person who is doing it. Fortunately, I have a short list of all the IP addresses who have been there, so I can just look at the posting dates and narrow it down.
If you would like to have the new site address please email me and I'll send it along.