Distance and blended collaborative learning settings are usually characterized by different "social structures" defined in terms of groups' number, dimension, and composition; these structures are variable and can change within the same activity. This variability poses additional complexity to instructional designers, when they are…

This special report includes five articles that discuss use of the World Wide Web in education. Highlights include higher Education uses, including linking faculty and students and what faculty need to put courses on the Web; a team approach to course development; using databases to support instruction; and enhancing Web-based instruction. (LRW)