Review Web site Yelp said it is testing out “Yelp Deals” — large discounts at local businesses that site users can buy on one day only. The move appears patterned after sites such as Groupon have gotten extremely popular by combining social media with the power of group buying, offering shoppers daily deals on products and services in their communities.

With Groupon, however, the deals are only made active once a certain number of people in a city have agreed to participate.

In Yelp’s case, there is no minimum participant requirement. Right now, Yelp is just testing the service in San Diego and it isn’t currently offering one deal each day. It has offered two deals so far: one at a spa and another at a Yoga studio.