The recent PageRank update from Google was the longest ever. Generally it takes three months to see your updated PageRank, but this time it was more than six months. With the recent buzz about Google devaluing sites which sell PageRank, this update has made a buzz in the whole blogosphere. Andy Beard wrote a good article where he found the Digg’s favorite sites that were hit by this update, and explains it with the Google’s Guidelines to the SEOs. Which states that:

Don’t participate in link schemes designed to increase your site’s ranking or PageRank. In particular, avoid links to web spammers or “bad neighborhoods” on the web, as your own ranking may be affected adversely by those links.

Loren Baker also explains what he feels might be the reasons for this drop in the PageRank. His own site SearchEngineJournal a very strong PR7 site has dropped to PR6. He points out paid links, massive linking, as the reason for this effect, which he called the “Halloween Effect”.

What I personally feel is that there might be some updates still going around on the Google. Well the sites which has dropped links does fit the reasons put by Loren, still I feel that it may be due to the increased number of posts (hence links) on the main page. Well this might be true for Problogger.net, which recently got a new design which has an increased number of posts on the front page and hence the link juice is distributed among the posts itself. The future will tell, if this perception is true or not!