So, for a while now, I have been watching Sitepoint, and other places where you can buy and sell sites. I have also watched as numerous sites I know well have been bought and sold, and there is one major thing I have realized: on average, a site will lose up to a third of its traffic after being sold.

I know this is a generalization, but from what I have seen over the last couple of years proves to me that I am right, especially where blogs are concerned.