A few months back, Google Introduced the new rel=authortag to highlight original content curators in search results. Married with Google Plus, the author tag uses a lot of signals which differentiates an original author from spammers and helps users discover useful content.
It is a simple way to inform Google that you wrote this content and your Google Plus profile image should appear on search results, as seen in the following example:
There is no guarantee that your Google Plus profile image will mandatorily appear on search results, after you have added authorship support on your website. The display of authorship was tweaked recently, in order to showcase the popularity of an author with his Google Plus circle count and more social data.
Now here is another reason why you should consider adding authorship support on your blog or website.
Earlier, when you clicked the name of an author from a search result page, Google would take you to the Google Plus profile of the author. This has been changed recently and Google now keeps the user on the search result page itself, showing more information about the author and some of his recent posts. Following is an example:
Notice that a filter of author name has been added to the search box and you can add more keywords to refine the search. As long as the author name is contained in the search box, Google would show results that have been written by this author only. The results can be a blog post, a post on his Google Plus profile, a post on LinkedIn and so forth.
The idea here is to highlight the author and offer a way to filter content written by specific authors who hold Trustin the eyes of Google. All the search tools in the left sidebar will continue to work along with the authorfilter, so you can filter posts that are written by a specific person, within a specific time frame or date.
This is a nice and easy way to keep tabs on your favorite authors from one place, no need to subscribe to their author feeds on multiple blogs. No wonder, actual users will soon discover this feature and they will start using it to find content written by specific people. Hence, it makes sense to add authorship support on your website and tell Google that you are the person who wrote this content.
The future of searchis clear. Google Plus is slowly being integrated in every nook and cranny and you can no longer ignore its dominance.