Bannon, LiamBødker, Susanne2017-04-152017-04-151997978-94-015-7372-6This paper investigates an important, yet under-researched topic in CSCW, namely shared, or common, information spaces. Precisely what is meant by this term, however, is not always obvious. We provide some background to work in the area, and then proceed to examine features of such spaces through examples. The work involved in both putting information in common, and in interpreting it, has often not been sufficiently recognized. We show how, in various ways, it often requires added work to place items in common, and open up the question of how this might affect use of the WWW, often seen as the ultimate common information space. While there is still a need for further elaboration of many dimensions of the concept, and linkage to related ideas, we believe that the issues raised by this exploration are of importance to the CSCW field.enText