TripAdvisor-style sites are set to change the structure and behaviour of private healthcare provision. They are growing fast in the Nordic region, Germany and East Europe. German healthcare consumers say that such sites will have an 8.1 out of 10 impact on their choice of services by 2014. The largest is Jameda with 600,000 written reviews and traffic rising at over 60% year-on-year. Philipp looks at how these sites are changing behaviour and the implications this has for operators. Presented at the Healthcare Europa Annual Conference 2014, The Return of the Bull Market.