Social network sites have become the most important medium for pepole to interact and share informations. Customers tend to search for advice online before they make purchase decision. That is why eWOM has become so important in purcase descision process. Negative eWOM is the most concerned issue for the firms because of it's great impact on consumers. To investigate the extent to which eWOM influences buyer's choice, the influence of both positive and negative eWOM on restaurant choice in Croatia was explored. For this purpose the influence of various variables in relation to positive and negative eWOM was explored. The research was conducted through a websurvey on social networks. The results showed a positive correlation of eWOM, trust and attitude toward the purchase intention. Interestingly, the research also showed positive correlation of negative eWOM and purchase intention. Both, positive and negative eWOM have high influence on forming an attitude and positive attitude is crucial when choosing a restaurant. Results of this research confirm that modern consumers do not tend to believe in every information that they are presented with and to prove the contrary they often carry out additional research by themselves.