So far, there's one page, on carpet, which gives a good overview of how carpet is made and the different materials it is made from.
The long-range goal is a fully fleshed out wiki and product database, with product labeling generated from the data. We like the idea of a grassroots rating system. And the graphic simplicity of the label and of the lens device in particular is brilliant.
However, we worry about the practicalities—not to mention the accuracy—of relying on user input of so much data.