Wish I knew about these guys a year ago, when I got rid of most of my books to make room for a nursery. My book search solution is to upload a list of ISBNs to

Wish I knew about these guys a year ago, when I got rid of most of my books to make room for a nursery. My book search solution is to upload a list of ISBNs to google books and do "search within my library". It doesn't have full coverage, but is better than nothing.