The Power of a Taxonomy

I'm wondering what are good examples of the sort of business problems or organizational problems that having such a structure can help solve. You brought up search before and I actually meant to continue with that because sometimes search isn't good enough. So if there is a search the Soros or even a more fuller displayed taxonomy to integrate with the search, this can help a lot. The combination of what is entered in the search box and then other topics or categories from a taxonomy to limit or filter results makes it a better experience and get better results.