Your Favorite Restaurants Are Filthy: SF Health Inspection + Yelp Review Mashup (reasonengine.wordpress.com)

This mashup of public health inspection records and Yelp reviews paints a revealing picture of the perils of dining out in San Francisco, with more than 40% of restaurants in many neighborhoods incurring high-risk health violations such as vermin infestation, sewage contamination, unapproved living quarters and the sale of previously-served food.