I'm not really sure what Google is up to if I'm to be honest.
I usually make a habit of following links that brought visitors to my site, one of which took me to my sites listing in dmoz. For whatever reason the dmoz page my site is listed on had a PR
of 0 about a month ago and now it's suddenly back to normal.
...and yes I did hit page refresh just to make sure because I know sometimes the PR
bar won't update when viewing a new page in the same tab in Firefox.
Anyway, I just thought this was extremely weird.