Collaborative Software Development Laboratory - provides a physical, organizational, technological, and intellectual environment conducive to collaborative development of world-class software engineering skills. CSCW Annotated Bibliography - An annotated bibliography, through 1991, of computer supported cooperative work. This bibliography is a part of the Computer Science Bibliography Collection. Physical and Virtual Tools: - Activity theory applied to the design of Groupware. The Caelum Toolkit - a general framework for the construction of groupware and CSCW applications. GroupLab Publications - Abstract and text of CSCW research papers from GroupLab, 1983-1999. Helping CSCW Applications Succeed - This study found that the use of a computer conferencing system in a research and development lab was significantly shaped by a set of intervening actors, "mediators", who actively guided and manipulated the technology and its use over time. Modifying CSCW Environments Dynamically for Supporting Virtual Enterprises - In CSCW environments data and operations can be shared by users and/or they can have their own defined data and operations which may not be shared by other users.