Bill Powers' favorite tools.
Website: http://www.youtube.com/teachers
Website: http://sites.google.com/
Paid iPad app: http://itunes.apple.com/us/app/collaborize-classroom-pro/id512701825?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/collaborize-classroom/id497540468?mt=8&uo=4&at=10l6SU
Website: http://www.collaborizeclassroom.com/