I've read a lot of conflicting things about whether a white bar (PR0) means the site is new or the site has been penalized.
I opened a site at a new domain name about two weeks ago, and it's been slowly and steadily climbing up in the results for my keywords, and is now at around #20. Google seems to re-cache the main page about once every couple of days, but none of the sub-pages are indexed yet. Anyway, despite having enough links from places like DMOZ and some other (legitimate) sites which are at around PR5, my site still has a white bar (PR0).
So I'd like to know why the bar is white (as opposed to gray, or a low green). Would it be because google just hasn't updated the toolbar page ranks in a couple of weeks, and once they do my "real" page rank (whatever that is) will appear? Is that explanation consistent with having a white rather than gray bar? If not, might it mean that I was penalized for some reason?