Danny can you show evidence of that being the case?

If you look at the screen shots there is no google toolbar, it's not on a sitemap.  I could be wrong but, I never heard of Google going out doing sam spade type stuff to find & index... It's something that it has looked it to establish if the site is authentic, ie if it's actually BofA or something.. But, I've never heard of them doing DNS queries to find websites.

I liked the article.  Good work, now prove to me that they actually do something other than use it for discovery.  Ie will use anchor text that is no-follow to get a ranking in Google.  Can't wait for part 2.