Free book, Republic: a novel of America’s future, can be downloaded from here. I haven’t started reading it yet, but the author has made it available for free because:
Which is an interesting concept. Plus the author, Charles Sheehan-Miles, has already published another book, [url=http://www.amazon.com/Prayer-Rumayla-Novel-Gulf-War/dp/0979411408]Prayer at Rumayla[/url]