1.IntroductionTechnological enhancements, especially the internet and mobile devices have been reshaping the world and marketing as well. Today, all communication directions in terms of business (B2B, B2C, C2C, C2B) possible within the virtual environment. Digital media is a new avenue to retain existing customers and acquire new customers for marketers. Numerous business fields have been affected by technological changes and the tourism industry as well. Tourism is highly affected by these developments since tourists have a high tendency of using digital platforms and tourism is an information-intensive industry (Poon, 1993; Sheldon, 1997). Tourists' purchases and the whole information search behavior being digitalized. As Schueckert, Liu and Law (2015: 608) stated that 71% of independent tourists make their hotel bookings online. These figures demonstrated that virtual channels dominate the tourism distribution system. Although tourists make their hotel bookings offline, they may use the internet for gathering information about hospitality establishments. Gretzel and Yoo (2008: 39) have found out that 96.4% of the frequent internet users consult online tourists' reviews while they planning their trips. Also, another research showed that 49% of potential tourists won't make their hotel reservations without reading online tourist reviews (Statisticbrain, 2014). Thus, keeping up with new media has become indispensable for hospitality managements.People today can be defined as cyber citizens because they spend more and more of their time in digital environments. As Wertime and Fenwick (2008) stated, the boundaries of physical and virtual begin to blur. Also, markets begin to digitalize in parallel with the digitalization of the human lives. Therefore, marketers have to focus on virtual markets in addition to physical markets. In other words, companies competing with them both in the physical and virtual markets. There is a huge potential in the virtual world for marketers and if they omit this to target this market, they will pay a heavy price for such their unsuccessful strategies. In this context, there is an old statement where the fish are which may guide marketers.This research simply broadens the understanding of online reviews in hospitality. The aim of this research is to evaluate current online marketing performance of international hotel brands in Europe by adopting a holistic approach. As Wang and Tang (2003: 14) highlighted that further empirical research and theoretical development necessary for understanding online marketing better. Also, Cantallops and Salvo (2014) have published a literature review article which classified the researches under two categories as review-generating and impact of e-wom. It can be observed that the subjects like how frequently consumers use digital sources, to what extend they affected, why they share information in these environments and similar - broadly investigated in the literature. Although researchers have focused on the subject in terms of demand-side in their researches, it is possible to say that they don't pay enough attention to the supply-side. This research may be thought to be important due to its contribution on the supply-related side of the subject. This paper is composed of six parts. In the theoretical review part, conceptual aspect of the subject is explained and a review of literature is given. The proposed model of classification of online referrals is presented in part three. In the fourth part, selected European hotel chains' use of online marketing in a certain point of time is provided. The fifth part provides the results followed by concluding remarks.2.Literature Review2.1.Online ReviewsIt is known that the internet is one of the digital areas affected by rapid changes. Web 2.0 or social media technology is a milestone in the history of internet's development. There is no need to discuss how web 2. …
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