Interesting perspective, but I don't entirely agree with her. One of the intriguing directions publishing will take (is taking already) involves sourcing blogs that have the potential to become books. The publisher Eoin Purcell, who has kindly provided interviews for my site from time to time believes it will be a growth area in the publishing market in years to come. His site is, http://eoinpurcell.wordpress.com, in case you are interested.
I've just realised that the link on my blog name only takes you to a collective blog. The interviews with the publisher can be seen at my site:http://litlove.wordpress.com