Folksonomy is a system of applying public tags to online content in order to categorise it.
The system benefits the user as it allows them to re-find an item when they go back to a particular site.
Folksonomy can also be called social tagging or social bookmarking as it is essentially a classification system which creates keywords for common accessibility.
The term Folksonomy was adopted by Thomas Vander Wal in 2004, blending the words ‘folk’ and ‘taxonomy’ together.