Smashwords is a practical option which gives your eBook wider distribution possibilities!

Smashwords.com provides a distribution outlet for your eBooks in different formats so they can be read on the Barnes & Noble Nook, Kobo, Diesel, and Sony Reader to name a few. The cost is free to use their services and they are constantly inovating to help the indie self-publisher with free tools and advice (See Resource page for free eBooks on their provided services).