EDIT: I did, in fact, revamp by old books read list. I'm quite proud so you should take a look.
I want to start keeping track of the books I buy or otherwise get each month so I made another google page which you can see here. This is in addition to my list of books read which I think needs to be revamped (and flipped so the most recent books are at the top), so that will be my next project.
I also have been toying with the idea of creating a list of all of the books I own (sort of my own little library catalog). Part of me thinks it would be handy and part of me thinks it may be a huge waste of time. But I'll probably do it someday when I'm bored.