PageRank is Google’s way of deciding a page’s importance. It matters because it is one of the factors that determines a page’s ranking in the search results. It isn’t the only factor that Google uses to rank pages, but it is an important one.
Google Page Rank update June-July 2011: Google updated page rank on 27 June 2011. Google used to update the page ranks monthly, then quarterly and now it seems like they will do it every six months.
A quote from Wekky on Forums.digitalpoint.com after a question similar to this one: My site has page rank 5 is that good?
“All sites start from 0. You can go all the way up to 10. I would say (IMO) the pageranks go like this:
0 – it doesn’t matter if your site exists
1-3 – your site has some minor importance
4-6 – your site has some decent importance amongst other sites.
7-9 – your site is really important in the www world.
10 – there’s no way a user hasn’t seen your site, it’s that important”
