I lose track of many books that might have caught my attention for a brief, shiny moment. The Goodreads app makes it simple for me to pop titles into a "might want to check this out someday" shelf when browsing newsfeeds and "what are you reading now?" threads. It keeps the slush-pile so I don't have to. My "reviews" are probably not very useful to anyone else, but GoodReads will also tweet my reviews/ratings/quotes/status updates to my 3 Twitter followers automatically--thus saving me the effort of having to do so manually. It mostly works to amuse me.
