We all like getting something for free. In the past, I have written about the thousands of free e-books from Amazon, Google, and other sources. A quick review of Amazon indicates that almost all currently published commercial books, including many college textbooks, are now available in digital format in addition to the bound paper versions. For all of the courses in my program at my college, the students have the option of using free online textbooks. Microsoft has now joined the free e-book club.