What's going on with this Google webspam attack?

I haven't seen anything on the net or google blogs about it, anyone have the scoop?

Basically a lot of adult tube search terms have a cloaked link in the top ten results on the university of maryland domain that redirects to porn/marketing sites, and the whois looks like Ukraine/Russia.

(I suggest you DO NOT CLICK unless you are protected with anti-virus etc just in case)

Example: search google for 'boob tube' and you'll currently see it as the #3 spot. 'sex tube', #3 spot. 'xtube', #3 spot. 'redtube', #3 spot. 'croc tube' #1 spot. etc.