Book excerpt: How can online instructors and course designers' instruction harness the popular Web 2.0 tool, the wiki, for successful collaboration and learning outcomes? This book focuses on using wikis in the active learning processes that are the hallmark of collaborative learning and constructivism. It provides both the pedagogical background and practical guidelines, tools, and processes for accomplishing these goals with special emphasis on wikis and other collaborative design tools. This book supports the effective design and delivery of online courses through the integration of collaborative writing and design activities.