After many different requests I have finally updated the content that was in the Teaching Hacks wiki.  The content had been hacked by a spammer and the content had been lost.  I did some recovery using the Google Cache and also the WayBackMachine on archive.org.  I will continue to update the content on wiki.  http://www.teachinghacks.com/wiki3/

I have used a 301 Redirect to automatically move the old urls to go to the new urls.