Can Having a Kindle E-book Help Your Book Sales?

It seems that just when the debate dies down, it comes back to the front of a conversation. I was asking myself now how am I going to get people to review my book? I have given out about 15 free copies of my book, and two have reviewed it. (Reviewing a book is a different story... something I'll discuss later)

Then I was asked, do I have my book on an e-book?

Yes, I do think so, and mine's