Just noticed that pagerank has reverted backwards again..... probably won't last long, but this is the second time I have seen this happen this month.... Strange....
I saw this last night. http://forums.digitalpoint.com/showpost.php?p=449670&postcount=448 But the results on the older backlink/PR d/c's are not the same as they were for me. I wonder if they spent all this time on jagger tweaking filters, algo bits, etc. and are now applying them to the pre-jagger results. I would be interested to see a rollback and re-update of the pagerank and backlinks with what seems to be new processes for the data. I think I would do even better than I am now for some keywords. A few I am targeting did take some hits, some came out better - closer to what I expected to see.
One of my site started to show in google SERPs only after I got PR3. PageRank remains same for all my sites.
That would be due to the links themselves and any anchor text boost, not pagerank itself. PageRank has not played that much a part of rankings in a while, a few years at least. It is the anchor text boost that drives rankings now, not the pagerank of the links.