CAUSEWAYCollaborative Architecture, Urbanism, and Sustainability Web Archive. The Collaborative Architecture, Urbanism, and Sustainability Web Archive (CAUSEWAY) is a joint initiative by the art and architecture librarians at Brown, Columbia, Cornell, Dartmouth, Johns Hopkins, Harvard, Princeton, and Yale universities, and the universities of Chicago and Pennsylvania, under the auspices of the Ivy Plus Libraries Confederation. This project aims to preserve websites devoted to the related topics of architecture, urban fabric, community development activism, public space and sustainability in order to guarantee the continuing availability of these important but potentially ephemeral documents for researchers and scholars.