The aim of this article is to identify future research opportunities in online consumer reviews, especially for travel review websites such as TripAdvisor.com. The literature review covers the Internet and growth of eTourism, virtual communities, virtual community typologies, and the importance of TripAdvisor.com for travel research, electronic word-of-mouth (eWOM), social networking and the impact of online travel reviews on consumers. Propositions and future research opportunities are then raised.