Have you seen the Google search results with the authors photo next to the link? Well, that is part of the Google authorship program. Google wants to share information from trusted sources and this is one way they determine the quality and value of the material connected to a link. In other words, it’s really good for SEO.
If you wish to develop yourself as an expert in your field and wish to be easily found on Google, make sure you participate.
If you have a WordPress website here is a good post on who to easily set up authorship