Both Problogger and Copyblogger, two of the most popular blogs on the niche, announced that their PR dropped from 6 to 4. Previously other authority blogs confirmed that they lost PR, but the suspect was towards paid links. Given that Problogger and Copyblogger are not selling links, it might be just a readjustment on the PR scale.
Some people are arguing that since the PR drop is not generalized, it must be a slap from Google due to practices that conflict with its guidelines. Andy Beard suggested that the sites that got penalized were either selling links or exchanging them inside large blog networks. This is a feasible explanation given that most of the Weblogs, Inc blogs (Engadget above all) were penalized, and they do not sell paid links either.
Here is a list that I gathered with big blogs that supposedly lost PR on this issue:
- Statcounter (from 10 to 6)
- Engadget (from 7 to 5)
- AutoBlog (from 6 to 4)
- Problogger (from 6 to 4)
- Copyblogger (from 6 to 4)
- AdesBlog (from 7 to 5)
- Search Engine Journal (from 7 to 4)
- Quick Online Tips (from 6 to 3)
- Search Engine Roundtable (from 7 to 4)
- Blog Herald (from 6 to 4)
- Weblog Tools Collection (from 6 to 4)
- JohnTP (from 6 to 4)
- Coolest Gadgets (from 5 to 3)
- CyberNet News (from 6 to 4)
Update: It looks like mainstream websites that were selling links were also penalized:
- Washington Post (from 7 to 5)
- Washington Times (from 6 to 4)
- Charlotte Observer (from 6 to 4)
- Forbes.com (from 7 to 5)
- SFGate.com (from 7 to 5)
- Sun Times (from 7 to 5)
- New Scientist (from 7 to 5)
- Seattle Times (from 6 to 4)
Update 2: After reading through the avalanche of posts on the subject, it appears that this is not a PageRank update but rather a distribution of penalties (either automatic or manual). The theory that the penalized blogs were either selling links or part of a network that used a cross-linking strategy seems to hold.
Sumber : Daily Blog Tips
Materi Berguna lainnya :
http://www.seocompany.ca/pagerank/pr-10-pages.php
http://www.seocompany.ca/pagerank/page-rank-update-list.html
http://www.doheth.co.uk/info/list-of-web-sites-with-high-page-rank.php
