tangor - 6:27 am on Jun 15, 2011 (gmt 0)

Google, over the last three years, has really devalued PR link juice, so I'm not surprised; yet, links are what makes the web work, so will be interesting to see how this all shakes out.

Of course, G (and probably B, too) will not reveal what metrics are involved. That would simply be a blueprint on how to game the "system".