Simply because we can, and it looks ludicrous, we've created a page for our complete tag fog, where you can browse all the tags used on the site, in alphabetical order, with the size and color changing according to how often they're used. Mouseover to see the actual number of times. I'm sure there's a thesis in here somewhere.
And it's a very low tag cloud which makes visibility much lower than normal...hence, tag fog. Enjoy.