A classic example of a good hit for SEO might be a PR3 posting. You're on the PR3 page and the backlink is perfect, just like this tennis blog post for my client's BallenIsles page. A PR3 link. The problem is, when will Google credit the link. Right now, while it's a PR3 home page item, or later when the article is simply a PR0 archive?. Well, here's to pinging the article and seeing if that makes any difference to Google.