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.<p>I don't turn ads off, but I would much prefer ads that are not Flash.<p>I wouldn't mind if the site used affiliate links.<p>I really would not like "social network" integration.<p>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.<p>Amazon is <i>very</i> good at shipping product, but the website is horrid.