People have been trying to classify and organize information for thousands of years. There are many examples of cataloged items in ancient repositories, including items in the Library of Alexandria in Egypt. Taxonomy arose as an attempt to organize inform
"The future co-existence of controlled vocabularies and collaborative tagging is predicted, with each appropriate for use within distinct information contexts: formal and informal."
Ein englischer Text von Adam Mathes mit den Themen:The Creation of Metadata, Tagging Content in Del.icio.us and Flickr, From Tags to Folksonomy, Why Folksonomies Work and Areas For Further Research
Tag Systems "are supremely responsive to user needs and vocabularies (...). (T)ransforming the creation of explicit metadata for resources from an isolated, professional activity into a shared, communicative activity by users is an important development"