Folksonoomiad
Folksonomia is a collaboratively generated, informal classification system where users tag content with keywords or "tags". These tags are not predefined by a central authority but are created by the individuals who use and interact with the content. The collective use of these tags by a community of users creates a "folksonomia", which is essentially a user-generated taxonomy. This system is often seen in social bookmarking sites, photo-sharing platforms, and blogs, where users can add their own descriptive labels to items.
The primary characteristic of folksonomia is its bottom-up approach. Instead of a hierarchical structure imposed from