Hi I just saw that Google further downgraded my astrology website to PR3 from PR4, although traffic seemed to remain constant/slightly increased. It used to be even PR5 an year ago. Sure, I haven't been link building for a long time, but PR3?? Isn't it shameful ? Any thoughts as to what is the cause...? THANKS !
It seems that Google has been discounting links that "it" thinks has been bought. Perhaps there were some links you purchased that the big G no longer counts for PR value. Also it may be that some higher PR sites which once had links to your site has dropped them. A lot of people have been seeing their PR drop (most of mine remianed the same or went up in the last update - whew!) One consolation is that PR isnt really related very much with SERPs so this should not hurt your traffic flow.