I found this great article , Doctor, Google thyself, on MDConsult.
" My patients fit into three broad categories. There are the patients who love me, there are the patients who worship me, and, unfortunately, there are the patients who hate my guts and share their feelings freely at various online “rate-the-doc”–type websites. These websites seem to be a magnet for every patient with a gripe and access to a computer."
This is an article every doctor should read ! It's easy for unhappy patients to write unflattering ( and dishonest) reviews online - and this can cause serious harm to your online reputation !