my site
http://www.earthfrisk.com is just 6 months old so just out of the sandbox of search engines. It was given a PR3. I don't care much for pagerank since it is really all up to Google to play with at their will. My main business site was a pr 6 a few weeks ago and was dropped to pr4 -and we have NO outbound links on homepage and I do not sell any links or advertising on that site. So I look at Google just re-adjusting their own internal settings.
The more I read about pagerank the less interested I am in it even though some are so reliant on it for their advertising.
I just couldn't live worrying about the all powerful search engines taking out my PR when they want. I'd rather do what I've been doing which is advertising offline for my call centers. Although a, looking for high traffic sites now to advertise online, other than google text ads or yahoo - which I no longer use thanks to fraud I came up against in July.