Google is now displaying author information in search results.
Here are the steps necessary to set up your WordPress site to implement author information in google search.
In your WordPress dashboard, go to Appearance > Menus
Select the Screen Options link and make sure that Link Relationship (XFN) is checked.
Go to the menu item that displays the author information page for your site and add author in Link Relationship (XFN). For this to work, the menu must be displayed on all pages of your site.
Edit the page for this menu item and add a link to your Google+ profile using the following format:
Replace the url with the link to your Google+ profile. It is important that the link title has a + at the beginning or end of the title.
Go to your Google+ profile about page and add a link for your WordPress site home page to the Contributor to section.
You can test that you have done everything correct by using the Google Rich Snippets Testing Tool.
After a few weeks, you should start seeing something like the following in google search results for your WordPress site.