Everyone loves tag clouds

Here's a tag cloud Firefox add-on for Google: it's kinda obvious and kinda nice.  I've found it tasty for refining the obvious away from the chaff, and for spotting connections I hadn't known about ("ooh, they're touring?" etc).  Worth a punt if you love tag clouds as much as everyone else.

What do scarily-named Russian provider Intespei get out of it?  A sniff at every Google search you do, which is nicely marketable data.  :)