Terry Jones wrote about the "Web 2.0 Address Book" last October (
http://radar.oreilly.com/2010/10/getting-closer-to-the-web-2...). It was an interesting concept that I've been following since. But it seems there needs to be a clear case for everybody to share their data in order for this idea to work. Wouldn't FluidDB be subject to the tragedy of the commons, with nobody curating the data and maintaining its quality? Or can it truly be the "wikipedia of data"?