Publishing a book is easy. Learning how to do it right is a little more difficult. Publishing is easiest when you use the right distributors, not only do you save yourself time, but you can easily make more money in the process.
Read eBook Distribution and find out who to use and why you should use them. Look at the tables and charts that analyze the royalties paid by each distributor, which tetial stores and libraries they give you access to, and what other benefits or hindrances they might offer.