I've been adding books to my Library Thing library. When I joined the site, I added a quick hundred or so books, then most of my reference books, and since then, just the books I finish reading. But this week, I finally got started on entering all my books, and it's a daunting task as many don't have ISBNs or don't have scan-able ISBNs. If there's no cover in the database, I'm taking photos and adding them. Plus, I'm doing some quick weeding of out-of-date non-fiction and of reference books made superfluous by being too easily matched by the internet. In some ways, I feel like I'm back working.
If you're on Library Thing, you can find my library at: http://www.librarything.com/catalog/ShellyS