Technology roadmapping (TRM) is gaining momentum as a strategic management tool for an organization to integrate technology into business strategy. This paper reviews over a hundred of TRM related publications to provide the community with the current state of roadmapping research and practice. From the literature, the issue of keeping a roadmap alive has been identified as the key challenge in the field. To address this challenge, operationalization and effective implementation of TRM are highlighted as the potential areas for future research.