Yelp has been promoting their services heavily on cable lately with silly commercials.
They have cemented their services as the premier review website and Yelp! reviews will show up in Google Rankings. 

 

Add your business to https://biz.yelp.com/ if your business is not listed it will ask you for your business information to get listed.
Once you are confirmed you will be able to point your customers to Yelp! for reviews.