Computer Support for Collaborative Learning (CSCL) is a field of study centrally concerned with meaning and the practices of meaning-making in the context of joint activity, and the ways in which these practices are mediated through designed artifacts. This volume includes abstracts of papers that were presented during interactive poster sessions at CSCL 2002. Documenting an extremely heterogeneous, productive phase of inquiry with broad social consequences, these proceedings reflect the current state of CSCL research—particularly in North America and Western Europe.