Neil put up the announcement on his blog just recently:
Kids! Free! Book!
The good news is the link to the free online American Gods is up on the front page of the neilgaiman.com website. The bad news is that the link is wrong.For the next month, your free copy of American Gods is waiting for you at
http://tiny.cc/WRiXEFeel free to spread the link as widely as possible around the web. If it works, and people read it, then a) we may be able to put up another book and b) sooner or later they’ll simply let us give away the book in electronic form....
It’s an excellent book and I recommend checking it out if you haven’t already. I got my copy through my mother who’s also a big Gaiman fan.
Oddly this is also one of the first digital audio books I ever downloaded.