Reviews are an important part of getting to know your stylist. Quality reviews give you insight to the skills and abilities of the Hair Stylist you are going to trust with your next great look, or to help you maintain your style.
Google is currently the most commonly used search engine and they have upgraded their review system to include Zagat Guide reviews.
Yelp has been a local standard for some time now and if a powerful tool for gaining insight into the service or product you are looking for.
Yahoo! is also very good at tracking local business and providing a place for reviews.