The purposes of this paper are (a) to describe how the open-ended knowledge construction and communication tools TEE (The Electronic Exercise) and EF-editor (Exercise Format Editor) can serve socialconstructive language learning from a distributed cognition point of view, (b) to report how TEE and EF-editor have been used in a foreign language classroom with 25 seventh grade students for creating a Web-based tourist guide to London, and (c) to present the results of an evaluative study investigating the benefits and constraints the teacher and students experienced through this learning scenario.