Last night got an email saying that the new Pottermore ebook store is open and that the Harry Potter books are (finally) available in electronic format.
This is significant because it is the first time that Harry Potter books are available as ebooks and the only place to buy them is on the author's own site. (If you go to Amazon to buy a Kindle version of a Harry Potter book, you're re-directed to Pottermore).
The book business is changing. So is the music business. And these changes have ramifications in your business too: How you generating attention?
Now authors can easily get a book out without going to a publisher and without using paper. And they can control their distribution.
That's not to say that traditional publishing is going away. I actually think print books and the big publishers have a future in the new ecosystem.
You no longer need to convince an editor in New York or an A&R guy in LA that your work is worthy.
Now you can create your own audience, build your fan base, publish your art, and control its distribution. Or you can make your work completely free so you can spread it far and wide like Summer Land did.