Chris Anderson's new book (the subject of some discussion here on MobileRead)
Free is going to be free in a variety of digital formats - Audiobook, Podcast, Kindle, Google Books, etc. And for now you can view it on Scribd (if you'd care to bother with that)
So here it is on Scribd:
http://www.scribd.com/doc/17135767/F...Chris-Anderson
Audiobook (zipped MP3s):
http://www.wired.com/images/multimed...unabridged.zip
Audible Audiobook:
http://www.audible.com/adbl/site/pro...seBVCookie=Yes
Google Book (table of contents, so better than Scribd)
http://books.google.com/books?id=lLZ...gbs_navlinks_s
Not sure if other ebook formats will be supported (ePub, etc). But I'll update the post as I find out.