The word on the street from those who watch such things is that Google are currently doing a Page Rank update. These things tend to take a day or two to sort themselves out but there are a few tools that can help you work out what your page rank might end up at. Here is one such tool from SEO Chat.
If this is an accurate measure I’m pretty happy because it indicates that ProBlogger.net has finally been given a page rank and goes from a PR of 0 to a PR of 6.
Update: There are a few discrepancies using this tool by the looks of things. You might also like to check your page rank using Page Rank Check or .