SteveJohnston - 3:06 pm on Feb 4, 2009 (gmt 0)

If it is an anti rank-checking, anti-SERPs-scraping initiative, then they'll probably just switch the data into your registered Webmaster Tools account, thereby giving the legitimate owner all the data they could want - as per link data currently - and removing it from the public domain. Wonder whether Hitwise have such contingencies in their business plan.