into patterns that are both memorable and meaningful, and metaphor is often the only means to deal comprehensibly with complexity. Moreover, exploring "new ways of thinking" in the light of enhanced mental imagery (or mental model) appears indispensable inasmuch as furthering "mobilization of public opinion" and the "political will to change" is dependent upon insights that are too complex to be easily communicable. For instance, limitations of dualistic thinking are well-known and holistic approaches may represent more desirable alternatives, but how is it possible to implement such alternatives? The page Challenge: transcending the "switch" metaphor deals with that question. Integrative knowledge and transdisciplinarity The purpose of that project is to assemble descriptions of the range of conceptual approaches which are considered integrative and which are held by some international constituencies to provide a key for strategic response to the global problematique. Buzzwords like "global", "networking" and "systematic" are often used as magical "words-of-power". Nevertheless, in a society characterized by specialization, fragmentation, disparateness, or opposition, integrative approaches until now have proved inadequate or too difficult to implement. In order to go beyond that difficulty, it seems necessary to creatively introduce novelties, such as a science or art of disagreement that could clarify how to disagree intelligently rather than do so in a mindless manner requiring some form of violent or repressive reaction to eliminate the disagreement as soon as possible. There is a wide variety of initiatives pertaining to integrative knowledge and transdisciplinarity, and a page like Significance: previous, parallel or related initiatives presents several of them. With regard to interdisciplinary relationships between organizations, problems, strategies, values and human development, there is the Integrative Matrix of Human Preoccupations which has been developed by the editors and which allows to deal with all those elements in an exploratory fashion. Transformative approaches to social organization The purpose of that project is to provide a context for the presentation of new approaches to the challenges highlighted in the other projects. The emphasis is on configuring information in new ways, through a variety of accessible techniques, so as to allow easier navigation through complexity, and so as to evoke imaginative insights in response to such complexity. The Overview page presents about forty of those approaches or techniques, including interactive database use, q-analysis, information visualization, confidence artistry, tensegrity organization, I Ching, transformative conferencing, or marriage between poetry and policy-making. Contributors The project was originally conceived in