lammert - 6:17 am on Jul 17, 2010 (gmt 0)

One of my sites has about 50% of the pages with the "noindex,follow" robots attribute. They are not visible in the SERPs, but experience is that link juice just happily flows. That may not be fully representative for links which "fall out" of the index, but the juice graph of Google consists of definitely more than just visible URLs.