If you have a residence in the US, you can borrow eBooks or audiobooks from your local library. You just need a library card. I live in Minneapolis and can choose from over 17,000 eBooks or audiobooks through the library. There are many devices that can be used and it is always being updated with new devices - just last week, downloads were made available for Kindle devices.
I don't own an eReader. Hey, what can I say? I can't decide which one to get and they change as fast as a street light. I do own an iTouch and have access to an iPad; hence, I decided to put my library books on these devices and created a 30 second video on how to do it.
epub books to ipad using bluefire reader