A folksonomy is a system of classification derived from the practice and method of collaboratively creating and translating tags to annotate and categorize content; this practice is also known as collaborative tagging, social classification, social indexing, and social tagging. Folksonomy, a term coined by Thomas Vander Wal, is a portmanteau of folk and taxonomy.
Vander Wal explains some of the characteristics of folksonomies by identifying two types: broad and narrow. A broad folksonomy is the one in which multiple users tag particular content with a variety of terms from a variety of vo...