This post comes from a discussion with a client on the feasibility of having a Yelp account for Local SEO purposes. My reply was as follow with slight additions to make a bit more sense for a blog post.
What is Yelp?
Yelp is a local business directory enhanced by social media tools such as reviews, shares and interaction. It helps local business owners to promote their business, but more importantly, stay in touch with their customer base (current and potential).