Deal sites

I always wanted to buy stuff from Groupon, but they were not in my previous town (Gainesville) -- which may have changed by now since they are growing quickly. But since we've moved to Birmingham I've discovered livingsocial.com. If you have it near you, definitely sign up. It's basically just like Groupon in that it'll send you a daily email with the daily deal (usually saving 50% on a product or service), and as a newcomer here, I see it as a way for me to check out new restaurants and local sites on the cheap, which is how I like it! Are there any other deal sites out there that are worth checking out?