Seventy years ago the paperback turned the publishing industry on end and there were cries of woe and doom for the American publishing industry.
Now, in the second decade of the 21st century, 70 years after that upheaval, ebooks are causing the same ripples.
http://www.teleread.com/publishing/w...my-number-one/
Read the linked article within the Teleread article. Very interesting read.