Free is Always Good!
Free as in beer is always a good thing in my book. Karen from K12 Handhelds recently released a number of new eBooks under a Creative Commons license on her site (http://k12opened.com/ebooks/). Definitely a good find! I once took a workshop with her on podcasting years ago, and she definitely produces some high quality content. I would go check out these web, Kindle, or ePub formatted books.
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