As long as we have content, we have metadata.
“Here’s something about taxonomies that might surprise you: they’re not just for librarians anymore. Taxonomies were once a niche concept – useful but complex structures tackled only by the most hearty of information managers in sprawling databases. The past few years have seen taxonomies demystified and ‘rebranded’ as powerful yet approachable tools for anyone with an interest in making content easier to find and use. One of the most popular applications of taxonomy to come out of this renaissance is taxonomy-driven publishing.”