Jodi Picoult made headlines last week for her views on self-publishing, expressed in an interview with the Daily Beast (from Page 2):
What advice would you give to an aspiring author?
Take a workshop course. You need to learn to give and get criticism and to write on demand. And DO NOT SELF PUBLISH.
Unfortunately, Jodi Picoult wasn't pressed by the interviewer and didn't elaborate (it would have been amusing if she had done so IN ALL CAPS).