Barcode your bookshelf with Google Books features a short video that shows how to use a bar code scanner to enter your books into your personal library on Google Books. I don’t have a scanner, but I bet lots of you do! Handy, fast way to get lots of books entered quickly.
Why bother adding books to Google Books? As they note at the end of the video, once you’ve built a collection, you can easily search the full text of just your own book collection. Handy for those times that you can’t remember which of your books has the information you’re looking for.