jimbeetle - 2:39 pm on Jul 19, 2010 (gmt 0)
If more people's browsers visit your site, and report to Google that they visited and stayed a while, your pagerank will likely increase even with zero inbound links(outside social sites using nofollow). Can't test it but I know it's true. Popularity has value that may not equal number/quality of inbound links, Google knows this and it's weighed and measured accordingly.
I don't think we should start muddling terms here.
Yes, there are different components of the algorithm and they all have different ways of assessing a document's value, but we shouldn't refer to them all as "PageRank," especially since Ted's question refers specifically to Google's web graph and how links are valued or not.