While widely recognized as a best practice, comprehensive terminology management is typically not part of most translation and localization projects. Many factors may be contributing to this sorry state of affairs, but the lack of an easy-to-use, no-cost/low-cost, standards-based tool for centralized, collaborative terminology management certainly ranks high among them. TermWiki is a free open source initiative that employs the familiar wiki technology to provide a powerful yet user-friendly terminology management solution to organizations of any size - including freelance translators. This paper introduces the reader to the promise and limitations of TermWiki, and suggests possible uses in translator training.