Shiftspace

By pressing the [Shift] + [Space] keys, a ShiftSpace user can invoke a new meta layer above any web page to browse and create additional interpretations, contextualizations and interventions - which are called "Shifts". Users can choose between several authoring tools - called "Spaces" - that allow web users to annotate, modify and shift the content of a page and through ShiftSpace, share that shift with the rest of the web. "Trails" are maps of shifts (shiftspace content) that create meta-layer navigation across websites. These trails might be used as a platform for collaborative research, for curating net art exhibitions, or as a way to facilitate a context-based public debate."