This is somewhat shocking because:
* These are technology blogs that should know about the feature and
* It is shown to increase the click through rate from the Google search results to the web site. A higher click through rate leads to more ad impressions, which leads to more revenue for these technology blogs.
We’ve seen reports of authorship increasing click through rate by 30% to 150% or more.
The survey found 9% have ‘completely’ implemented rel=author by both adding the tag to their website and pointing to the author’s Google + account. An additional 3% had implemented the rel=author tag, but ultimately did not link to the author’s Google+ account.