stan_victor - 8:47 am on Nov 17, 2011 (gmt 0)
I have a 6 year old site and it has around 106k back links shown in WMT. I have had different experience with Page Rank lately. I have had posts with 0 back links but excellent content assigned Page Rank 1-2 by Google with in 7-10 days. In some cases those pages received comments and the maximum was a few Facebooks likes and tweets but that's not true for all posts. On the other hand I have had pages that are 2 year old that are unranked.