steveb - 8:23 pm on Jul 26, 2008 (gmt 0)

"Surely that doesn't deserve an equal slice of the PR Pie."

Of course they do. It would be totally illogical, and disasterous in terms of logical rankings, to not give the same piece of the PR pie to links to subdomains or internal pages.

Likewise position on a page is just too stupid for Google to seriously make an alteration based on. (A ranking value consideration, fine, a PR consideration, no.)

The most probable place for a change is age of links and age of domain. The next most probable is how PR is distributed when links are discarded (duplicate/tripilicate links, nofollow links...). Previously nofollowing links probably was wasting pagerank. After Google (strangely) started suggested using nofollow to manipulate your pagerank, nofollowed links were probably ignored in PR calculations.