Join Date: Sep 2005
Location: Lafayette, CO, USA
Programs: SPG Lifetime Plat, AA Gold, UA Gold, DL Silver, HH Gold, Vail Epic
Posts: 9,096
Such as Jetsetter.com and SniqueAway.com? They're not true "group buying" sites since they don't require that a minimum number of people buy into the offer, but it's otherwise similar marketing.
Do a search in FlyerTalk's S.P.A.M. forum for info about the above "member-only" sale sites for hotels.
Welcome to FlyerTalk, rhazlett!