Gneumatic

ShiftSpace is a social media tool that creates “an open source layer above any web site.” What users can accomplish in this layer varies depending on their goals and intentions. Some Shift Spaces are purely utilitarian, providing the ability to leave notes or highlight passages of text. Other Spaces function in a more interventionist capacity; using Greasemonkey, the ImageSwap and SourceShift Spaces enable users to alter a page’s content and display. Finally, Trails enable mapping and linking of Shifts across sites/pages. Features in development include social networking capabilities and a P2P distributed architecture.

This video gives a good overview of how it all functions together.

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