I have been testing whether links posted in Google Buzz pass PageRank or at the very least can help with indexation of content since 22nd February 2010
I didn’t write a blog post about it, but I did write something exclusive for my readers on Google Buzz (those few of you out there) as a test case, posting a link from that page to one of the most poorly indexed sites known to the internet, which happens to be owned by Google.
Here is the link to the seo test page I kept on this domain, linked from my top navigation.
This is the post on Google Buzz that has a link to a single page on Vark.com where I answered someone’s question.
Here is the page indexed in Google
Google updated their profiles around 3rd March 2011 so this page may have been indexed a while back and I missed a Google Alert. It does however add some credence to the notion that someone giving you a +1 may at the very minimum give you some kind of indexation benefit. Whether that will pass anchor text or other signals remains to be seen from further tests.
Any claims from before March 3rd 2011 of a direct ranking benefit or even indexation benefit from Google Buzz should be questioned.