When Google launched Google+ Local it brought to the front Zagat reviews, which replaced the Google star ratings in the Google Maps results.
A Google Business Help thread has one merchant who said on average he received 30-60 visits per day from Google from his maps result and now it is down to 0 to 5 visits per day. He said it is "destroying" his business! [Note to Google] Ready Fire Aim!
Via Neil Ferree