I would use a site if it was clean and simple, and allowed me to search for books, and was better than searching Amazon, and it returned a list of places where I could buy that book, and a list of formats.

I don't turn ads off, but I would much prefer ads that are not Flash.

I wouldn't mind if the site used affiliate links.

I really would not like "social network" integration.

If it was really good (very clean and simple and effective search and clean lists) I'd be prepared to pay a small fee to subscribe, but it would have to be a small fee.

Amazon is very good at shipping product, but the website is horrid.