Tag, you’re it

Tagging is starting to take off. Tagging is the process of labelling a piece of data with metadata. In a collaborative setting it’s known as a folksonomy. Users of several new sites are voluntarily classifying and categorizing thousands of pieces of content each day, for their own benefit and others. While they are not librarians, or possess google like algorithm, this is a valuable new way to find information on the web. More: Tagging Is It, by Wade Roushe.

Some tagging sites:
Flickr, photo sharing
Furl, archive of Web pages for future reference
Blinklist, social bookmarking