Online free courses

[gwendally]

ITunes U

OER Commons

Academic Earth

Also, while I'm at it: check out free ebooks here:

http://www.planetpdf.com/free_pdf_ebooks.asp
http://www.adobe.com/products/digitaleditions/

Also, check out this:
http://ebook.online-convert.com/convert-to-pdf
http://fivefilters.org/kindle-it/