i went through microsoft.com,and found that none of the e-books was for free
http://www.thefreelibrary.com/
http://www.freelibrary.org/
http://www.baen.com/library/
http://www.getfreeebooks.com/
http://www.free-ebooks.net/
http://www.planetpdf.com/free_pdf_ebooks.asp
http://www.thefreelibrary.com/
http://www.freelibrary.org/
http://www.baen.com/library/
http://www.getfreeebooks.com/
http://www.free-ebooks.net/
http://www.planetpdf.com/free_pdf_ebooks.asp
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