webnewton - 9:44 am on Jul 6, 2004 (gmt 0)
PR definately has nothing to do with the show up of a link in the backward links. Google has this tendency to keep deducting the backwords links whenever there is an update. While some new links add up with each update many of the old links disappears. Why? I think no one know.
So this is a common phenominan with all. Google however takes into account every link coming from all the spidered pages having that link.