With the proliferation of mobile network, mobile devices, and Web of things, many different industries including government departments, private firms, and research communities offer more transparency through releasing data. The resultant effort offers a new paradigm-open data-still at infancy stage though. Despite the rising research initiatives explaining its benefits and challenges, and demonstrating policy conception and project details, no systematic survey of extant literature on open data is performed yet. Such a study could examine open data from a holistic canvas, assess the current status of research and propose future direction. This study conducts a review of the extant literature in order to ascertain the current state of research on open data and present an extensive exploration for eleven different types of analyses: contexts, perspectives, level of analysis, research methods, the drivers, benefits, barriers, theory/model development, the most productive journals, authors, and institutions. Also, we present a number of future research agendas. This study also explains the implications to assist researchers, policy makers and journal editors.