How you might be affected by Google's plans for the next coming up weeks: It is likely that you will see more variance in your Google rankings because Google's internal databases are going to be updated every 1-2 days instead of every 3-4 weeks. Google usually reveals PageRank updates quarterly to the public. A new PageRank update is underway. However, this does not mean that your Google rankings will change because the new PageRank values are already incorporated into their ranking algorithms. Google's supplemental results should be nothing to be afraid of. If your site shows up in the supplemental results, then don't worry. According to Matt Cutts, the PageRank of a web page determines if the page appears in the regular or supplemental results. The supplemental results continue to get fresher, "and website owners may see more traffic from their supplemental results pages." Matt Cutts has just revealed Google's latest ranking plans for 2007 in his blog.
You can have 100 Quantity backlinks and Achieve an PR2 or better or you can have 2500 bad links with a PR1, It's the Quantity backlinks that you Achieve for an better PR and you can do this without buying them. A backlink could be considered as a Quality Backlink if 1. The Theme of the backlinking website is the same as your website. 2. It links to your website with the keyword (keyphrase) that you are trying to optimize for. One thing to bear in mind is that the results we get from the calculations are proportions. The figures must then be set against a scale (known only to Google) to arrive at each page's actual PageRank. Even so, we can use the calculations to channel the PageRank within a site around its pages so that certain pages receive a higher proportion of it than others.
That is a DATA REFRESH not a PR export to the tool bar or algo update... Here is a more detailed analysis of the Google Updates 2007 SNIPPET; and There's a bunch on the Supplemental index and back links.. yada yada