The aim of our research is to design and develop a new online collaborative translation environment suitable for the way online volunteer translators work. In this chapter, the authors discuss how to exploit collaborative Wiki-based technology for the design of the online collaborative computer-aided translation (CAT) environment BEYTrans, which is currently under development. The system facilitates the management and use of existing language resources and fills the gap between the needs of online volunteer translator communities and existing CAT systems/tools.