Thing #20: Find a "Folksonomy" and Describe it on Your Blog

Description:

Not too much in terms of description, though I can promise that this one is pretty simple. I want you to find out what a "Folksonomy" is, find one on the internet and describe it on your blog.

Hints:

• Google (and other search engines) and Wikipedia (and other encyclopedias) are your friends. :)
• Folksonomy is very much related to "tagging." So, do thing number 18, and you'll be well on the way to thing #20.
  
• Go as far as you want with the description. Like Calculus, it takes a little bit of time to really understand why this sort of thing would be useful. So, if it makes no sense, do what you can to describe it and then that's enough for me.
• Wouldn't asking a question in a quiz on folksonomy be a good way to find out if you really did the "things?"

Resources:

• Folksonomy -- Daniel Pink in the New York Times.