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Free Mac program: http://itunes.apple.com/us/app/ibooks-author/id490152466?mt=12&uo=4&at=10l6SU
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Free iPad app: http://itunes.apple.com/us/app/my-big-campus/id464196976?mt=8&uo=4&at=10l6SU
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Website: http://www.mybigcampus.com/
Website: http://www.teachyourmonstertoread.com/
Paid iPad app: https://itunes.apple.com/us/app/teach-your-monster-to-read/id828392046?mt=8&at=10l6SU