The search engine result pages (SERPs) have increased their information content.
For instance, a small image of the author is shown next to the snippets of articles, enriched with additional information, such as his name and the number of his followers. Google takes this information from the Google+ profiles.
However, the authorship tags are only shown, if the author has been verified. Google’s idea behind this is to provide SERPs users with content from reliable authors.
Search engine results that are completely linked with a Google+ account show higher click-through rates than those that are not.Glossary index