Hi. I would just like an idea of how much of an impact it is to your site to get a backlink from a specific PR. For example, PR 3,4,5,6 and 7. Commenting on a PR6 site goes out for about $70 here so it must be worth a lot but how much of an impact is "one" link really? thanks
It's really unknown no matter what anyone says or tells you. For example, I have almost 10,000 backlinks to my main blog/site, I never did SEO work for it, they just happened over time (it's been a little over a year). I know for a fact many of those are good PR backlinks, for example, I know I have one PR 6 aiming at my home page. All in all, my PR (over the past year) has gone from n/a > 1 > 4 > 5 > 3 (currently). Looking forward to the next update to see where I go.