This paper by Axel Bruns and Sal Humphreys for the International Symposium on Wikis in Montréal, 21-23 Oct. 2007, traces the evolution of a project using a wiki-based learning environment in a tertiary education setting. The project has the pedagogical goal of building learners' capacities to work effectively in the networked, collaborative, creative environments of the knowledge economy. The paper explores the four key characteristics of a 'produsage' environment and identifies four strategic capacities that need to be developed in learners to be effective 'produsers' (user-producers). A case study is presented of our experiences with the subject New Media Technologies, run at Queensland University of Technology, Brisbane, Australia. This progress report updates our observations made at the 2005 WikiSym conference.