After nearly 9 months of exile, Google co-founder Sergey Brin updated his blog last week.

This time he chose to write about his friend, advisor and mentor – Rajeev Motwani. Few days back, Rajeev was found dead in his pool and this shocked many people, especially the Stanford University fraternity. Sergey highlights how Rajeev helped him and Larry during their student days and also during the formation of Google. Though the post is not emotional but it does add the 4th post to Sergey’s blog.

Now all of you might be thinking what is so special about Sergey’s blog and his updation cycle. Right?

Well, thinking from an SEO standpoint, it is a very interesting topic. Let us consider some stats about his blog:

1. Sergey Brin started blogging from September 2008.

2. So far he has managed to write only 4 posts.

3. The PageRank of his blog is 7. (Dont drop your jaws!)

4. Google shows more than 480 backlinks to his blog.

Now considering all these stats, it is difficult to ascertain how Sergey managed to get such a high PR within such a less time. As per Google, which gives lot of importance to content, Sergeys blog does not have it in plenty. Also, there is no presence of comments (probably Sergey is too busy to approve them), which means there is neither freshness of content nor any interaction amongst people. Another important factor is his blog is running on a free blogger account, i.e. he does not qualify for the benefits that self hosted blogs win.

Its understandable that Sergey being a popular person will attract lot of eyeballs, which is indicated by the number of inbound links to his blog. But I am still wondering on how he achieved a PR of 7 in merely 9 months. I would love to hear from you if you know the answer, so please comment and share your thoughts.