I am sure someone has pointed this out before, but I was looking at a blog post and there was the now-common "Like this on Facebook" link, and it struck me that we are the connected document.
It's like what they did in Caprica, which I thought was a good show. They portrayed the initial virtual world as full of porn and violence, and they built online independent avatars based off of the giant database of information about any particular person (and behavioral algorithms).
We can see the beginning of this distributed database, there is the more social side of it (Facebook, etc.), and the more commercial side of it (how that information is used to select advertisements to place on a page you visit). It is a web of connections and data, where you are at the center of it. Your online self is represented by this data, but in a stronger way that just it being a record of your actions online. With enough connections and enough data, it is you.