Information and communication technologies (ICT) play an important role in every sector where information is the basis of the business. Tourism is no exception. Since the implementation of computerized reservation/global distribution systems to the advent of the Internet, the adoption of ICT solutions is an important arena to apply technological forecasting through "diffusion methods." These methods help in the analysis of the temporal dimension of ICT adoptions, independent of whether adopters are persons or firms. Diffusion models are descriptive, as they yield a general understanding of the diffusion process, and predictive as their aim is to forecast diffusion patterns. In tourism, and specifically in e-tourism research, diffusion models have only received low to