According to the Association of American Publishers, in 2010, ebook sales doubled, making up 9% of total book sales. With all the different readers now out there-- Amazon Kindle, Sony Reader, Nook, and now ipad-- there's definitely a lot of option out there. Although I for one won't be getting one for awhile (I love the physical copy of a book too much), I do see the potential for them and think that it's an exciting time for authors as epublishers gain not only more recognition but sales. It's been a long time for authors who epub and I'm excited at all the changes I'm seeing and I can't wait to see ebooks grow.
As I was going through articles today, I found these about ereaders and the pros and cons. Check them out:
Growth of eBooks and eReaders
How Many eBooks Spare a Tree?