PR of the linking page is one of the most important factors. PR
of the linking page determines how much value of importance is passed
on to your page. Higher the PR of the linking page, higher the value
you get. The home page PR is not as important, but it is an indicator
of how much PR a linking page may jump to, in due course of time. For
instance, if the PR of the site’s link page is 0, but the home page PR
is 6, then, there is a bright possibility that in a month or two, the
link page PR may also jump to a PR of 4 or even 5 due to the internal
linking structure of the partner site. While sites would be happy to
give out links from a PR 0 page, you can estimate that in two months
time, this link page can jump to a high PR, giving you great value in
the future.