For the past few months i have concentrated on just 4 out of about 30+ sites i own, the one in particular that i have got the most backlinks for has quadrupled its traffic from 3k UV's to 12K UV's over the past couple of month. The site was PR3 and Dropped to PR2 I should be happy as i am getting 4x the amount of traffic that i used to but for some reason i am still peed off with the PR drop, the site never sells links or anything like that but still dropped despite having probably 4x as many backlinks compared to the last update. Also i had a lot of PR2 inner pages and now they are all PR1. The other 3 site were relatively new site and have gain PR1 - PR2 so one of my new site now haw the same PR as my longest established site that is 6 years old. Very annoying.....