[acgourley]

While FB is on a great trajectory in this space, as of right now I would guess Yelp serves more page views to people looking for information about restaurants. They have some deals but its not extremely compelling.

Two possibilities: Yelp is missing a big opportunity or that opportunity is an illusion; every restaurant doesn't want to offer coupons freely online.

I realize you didn't specifically say restaurants, but if it isn't happening in that extremely competitive industry, why would it happen anywhere else?