I originally found this on Smart Mobs, although you can read the original post at
IFTF's Future Now. The book is available free under a creative commons license. I skimmed the first couple chapters. Seems like an interesting reference on how communities without even dial-up access can create their own broadband internet connections for cheap. The book also emphazies how the use of this unlicensed technology can aid activist groups in getting their messages across. Interesting.
Download the PDF