I think we need to start a whole new dictionary with words the have “cast” in them.  Very recently I found out Harold Wong and Chris Avis are doing some labcasts.  I have bad rock and roll ears so I had to ask them what the heck they were talking about.  It’s an interesting way to deliver information.  Deliver a webcast and combine it with a virtual lab.  It would be similar to the hands on labs you take at events like TechED but using virtual machines and webcast technologies.  I think it’s a kewl idea.  

See all of the information on the labcasts at http://blogs.technet.com/technetwebcasts/archive/2006/07/31/444231.aspx.  And somebody needs to add a definition at wikipedia.  My http://en.wikipedia.org/wiki/Special:Search?search=labcast&go=Go search came up dry.