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A Short History of Folksonomy

Introduction
Definitions
A Short History
What Proponents Love
What Detractors Hate
Flickr: a Tool for the Individual
Del.icio.us: a Tool for the Many
Tagging Library Classification
Fun with Folksonomies
The Future
Conclusion
References
Email









Tagging is reasonably new on the internet.  Comparisons have been made to the inclusion of meta tags in website code, going back as far as 1996.9  The main difference between folksonomies and meta tags is that meta tags are dependent on the website creator while folksonomies originate with the end user (bottom-up classification).  These social tags only emerged in the last two years.

The two best known sites to feature folksonomies are Flickr and Del.icio.us.   Del.icio.us was launched in late 2003. 10  It allows people to tag and share their bookmarked internet sites.  Flickr appeared in early 2004, 11 encouraging people to post and tag their digital photos for free, and to browse or search photos posted by other members.

Since the popularization of these sites, tagging has been incorporated into a variety of other applications.  CiteULike and Connotea use tagging to organize and share academic papers online
, Commontimes tags news, Revver tags videos, and Clusty is a clustered tag search engine.   

Technorati graphTechnorati tracks blogs.  In January 2005 they started keeping track of tags on blog posts.12  This chart will give you a good image of how quickly tagging has caught on in the "blogosphere" in the first half of 2005.

If you prefer video to graphs, the Art and Computer Science research group at Carnegie Mellon has used this data to create a playful animation,  illustrating this exponential growth of tag use.  

It is no wonder that some analysts are describing folksonomy in terms of hype and fads, but is tagging useful enough to live up to this momentum?  Lets look a little closer at what people like about folksonomies.

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