Scribd

 Scribd is a service where users can publish and share documents the world. Scribd iPaper is a way to view documents on the web. It is designed to be as easy and fast as possible.

There appears to be thousands of publications on Scribd. A lot of them are self published, however, I did find some published books that have been uploaded to Scribd.

I do not know yet if this service will add value to the end user or not. It is an interesting idea though.