In this article, we focus on factors of technology adoption in teacher training institutions in Costa Rica. Based on Rogers' diffusion of innovation theory (2003), we conducted semi-directed interviews with professors, program managers, and ICT managers from two Costa Rican universities. We show that the factors of adoption or resistance to technologies are both related to the organization (external) and to individuals (internal). On the other hand, university professors prefer more conventional instruments and offer some resistance to the latest technologies.