Another website that offers books online is called We Give Books. This site doesn't have anyone reading the stories, but it does allow you to share a story via a computer. They have my favorite childhood book The Snowy Day. I can't wait to share it with my class using my laptop and projector in order to make the book larger than life. Sharing a book on a big screen allows the whole class access to the book and the book can be read chorally.
I stumbled across this website from The Fayetteville Public Library. It offers TumbleBooks. If you are familiar with this, you know they offer hundreds of titles online, all read with great vocal animations.
I know there are more websites out there like these, some are free and others your pay a subscriber fee. I liked these due to their ease of use. I have them pinned to one of my Pinterest boards so I can access them quickly when needed. My students love when I put on one of these stories. It allows me a few minutes to set-up for a lesson while the kids are being read to.