I know that its typically the vogue to buy domains that have had a past. Domains that have pre-existing links. But then I started thinking... we've seen yet another Panda update. How do we REALLY know what benefit pre-existing links have on a domain which you buy. A domain that Google knows has expired and has been vacant for a time. Surely Google KNOWS that you are a new site on this URL, and that any previous links had nothing to do with your current content's merits. So how can we be sure what the benefit really is in those pre-existing backlinks? This is a hard thing to test. And as Panda rolls out I can't help but think that maybe Google wipes to board more clean than they used to. Its been a LONG time since I've seen anybody put this to the test. Thoughts?