currently I put my games on a shelf... and that's how I keep track of them
hopefully soon you'll be able to use the site here to keep track. I was planning to have the "My Collection" feature live back in August but I didn't like the way it was turning out so I scrapped it and started over. I'm nearly done the re-write. I should be ready for testing in two or three weeks then open for everyone two or three weeks after that.