The University of Edinburgh and research sponsors are authorised to reproduce and distribute reprints and on-line copies for their purposes notwithstanding any copyright annotation hereon. The views and conclusions contained herein are the author’s and shouldn’t be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of other parties.

The coordination of resource and activity to achieve some common objective is a key task within modern virtual organisations. The SemanticWeb initiative promises to increase the number of knowledge and information resources available, presenting more (and more varied) opportunities for interaction. However, as the number and complexity of these interactions increases, so too does the need for task support tools. This extended abstract describes our research into support for mixed-initiative (that is, involving both human and computer agents) collaborative tasks in distributed environments. At the heart of this approach is the I-X technology. This is introduced in section 2, while section 3 illustrates the nature of the task support it offers through the description of two applications. Section 4 outlines some future directions that this work will pursue and the final section provides a summary and some conclusions.