Here's an interesting article from Time:

http://www.time.com/time/magazine/article/0,9171,1873122,00.html

One odd thing is that it doesn't talk about print-on-demand. It talks a lot about vanity publishing and self-publishing, but the examples indicate that a large amount of cash up front is still necessary to do this, which is really so 20th century.

Because, to pick an example completely at random, there's my book, A Sane Woman, which was published quite nicely with no money up front at all, via lulu.com.

Other than that, though, it's an interesting article.

Later:

I'm gonna plug my book again, because now you can read a few messages from people who bought it and liked it, here.

(It's a website for the band Poco, but they don't mind off-topic stuff, obviously. I'm "waldo" over there.)