Why RSS and Folksonomies Are Becoming So Big
This might just be a matter of this sector waiting to be discovered by the spammer so that they can create their tag spam. And, I find it very difficult to accept the metaphor of Google as a library. It's that type of egalitarian collective that doesn't ensure authority on any particular subject. Just because many people are linking (or appear to link via the spammers), doesn't guarantee that the destination information is reliable.