Google updates toolbar PageRank about four times a year. They updated it in November, and August before that. Now they’ve updated it again - the first update of 2013.
People started noticing the update on Monday. As usual, webmasters are taking to Twitter to express their comments on the ups and downs.
I'm a little surprised that my rarely updated blog still maintains a Google PageRank of 5, above some regularly updated blogs. Mind boggled.
+100! RT @pxy: Oops.. my website pagerank has gone down to 2. Missing those good old 6/7 PR days. I'll blame it all on Twitter & G+.
I just had a check on my Google Pagerank and my site scores a 1/10. I would love to get this higher - if you want... http://t.co/NuZmmHMI
Google Pagerank has gone from 3/10 to 4/10, nice! Also, our Alexa ranking keep rising, currently: 187766
It's become pretty well known in the industry that toolbar PageRank is not the most helpful indication of how Google views a page, though actual PageRank is certainly still an important signal (Matt Cutts even referenced it in the latest Webmaster Help video).
As usual, here's the obligatory Matt Cutts video discussing toolbar PageRank: