I use Smashwords to distribute my books digitally. Why? Because it’s quite easy to do and they help me do digital distribution to a wide range of platforms including Apple, Barnes & Noble, Sony, Kobo, Diesel and even Amazon (though I do have an Amazon account of course, doesn’t everyone?).
I am getting ready to publish The Journey of Why (Myranda’s Story), later this month or in early January (I am doing editing now) and for those that prefer digital copies of books, Smashwords will be the place to get it. Of course, you will be also able to pick it up in those other ebook stores thanks to their services as well.