Podcasts

I travel 30 minutes between my two schools every day and have just started downloading and listening to Podcasts on the journey.  

Episode 226 talks about AT.  http://itunes.apple.com/ca/podcast/techstuff/id282795787

They made a great point for help in conceptualizing the difference between AT and IT:  AT has been around for a long time- look at hearing aids and closed captioning.