It is known that the internet altered the business model of the travel industry. Due to the exponential growth of its' users, several companies established online booking services. For instance, Traveloka.com and Tiket.com in airline ticket booking and the Rajakamar.com in hotel reservation. Online Travel Agencies (OTA) have been gaining important attention in recent years. Yet, limited literature focuses on discussing the development of such services in Indonesia. The research's purpose was to analyze the development of OTAs in Indonesia, particularly in its services, employment, and users. The study involves 52 Indonesian OTAs. A structured interview and website-based observation had been done. The results show that only a few OTAs offer direct payment system, while most agencies located in the capital city, Jakarta. Moreover, most of OTAs is on the Business-to-Consumer state. Meanwhile, most of the founders were an entrepreneur with information and technology background. Furthermore, the most popular service offered was the tour and travel ticket sale. There are several suggestions outlined for future research and practical implications for OTAs.