Organizing What You Read

I've been thinking recently about my huge reliance on Goodreads for organizing the books I read. It provides a convenient way to sort all the books in my life into neat categories of "read", "to-read", and "currently-reading", as well as the customizable ones like "to-review".

I don't think I could possibly sustain this blog without the Goodreads shelves. How else would I know what I need to review next, or what book I should pick up from all the ones I want to read? Of course, I could always make a list on paper or type one up on a document, but I certainly don't want to list out all 504 books on my to-read list, not to mention the lack of a search feature to find all the books whose titles I can only remember a word or two of.

How do you organize what you read?