So Google had a toolbar update last week and it seems like this time what they’ve focussed on are sites that are being updated regularly.  I had a few sites that went up in PageRank, I found that these were sites that were established for a long time as opposed to new sites. 

Also, it seems like if you have a site that hasn’t been updated in a while or no ‘real’ content added in a few months then the big G were going to penalise you for it.  Would be good ot hear some views on this.