Tagging at Technorati: Innovative and cool, especially if you almost understand it

Technorati, the search engine of choice for the blogosphere, introduced “tagging” at the beginning of the year, and since then more than 14 million blog-posts have been tagged, using more than one million distinct tags to do it.
(“Tagging” is a method of categorizing blog posts so they’re be more easily searchable, using a number of applicable keywords like “Roger Ailes” or “Katie Couric’s Legs” or “Fishy-fish-fish.” There’s a good primer here and also here.)