ReadWriteWeb has an interesting article today about group discount buying sites like Scoop St. and Groupon. Like Woot, the site features exactly one new deal each day - but a certain minimum number of people must agree to buy for the deal to be activated. (If they don't get enough people, the deal simply expires and nobody is charged.)
Today, for example, the Seattle Groupon deal is a $30 gift certificate to Galerias Gourmet Mexican Restaurant for $15. Not bad! While Scoop St. is New York-based, there are others out there that cater to various markets. Here's my referral link in case you want to join Groupon (full disclosure: I get $10 if you join and order a Groupon). I should say that I myself just joined, so I can't personally vouch for their deals, but it sounds intriguing and legit.
Ever tried one of these sites? Tell us about it in the comments!