Email games are primarily containers for facilitating dialogue about different problems and issues and for encouraging the construction and sharing of new knowledge, understanding, perspectives, and insights. Three sample email games are described in the next section. Our current collection of 15 email games have all been structured on the basis of prescriptions from different disciplines including communication theory, complexity theory, cognitive sciences, and social psychology. Different sources for prescriptions used in the construction of these games are briefly outlined below under the three topics of instructional design, game design, and online learning.