[Update 10/20/20: Program ending on October 31, 2020.]
Yelp has launched a new cash back program that lets you link debit and credit cards and earn cash back at thousands of participating restaurants when you use a linked card.

Unfortunately this is not a new program at all, it looks like it’s just a white labeling of Empyr (aka Mogl) according to the official Yelp blogpost. This is also used by LivingSocial’s Plus Restaurants. Although it’s weird in that all three programs have different restaurants in their list – although you can’t stack if a restaurant appears in more than one (you can only link each card with one of the programs).
This is a different network than Rewards Network (used by all the airline & hotel restaurant programs) so you should be able to stack those without issue. Card linked rewards programs are all the rage at the moment, Chuck put together this list to help you navigate them.
