SEO Quick Tip: Rich Snippets & Microdata
Rich snippets are structured data in your website's HTML markup. To put it simply, it tags the HTML on your site in a way that allows computers like search engines to understand the meaning of some of your content. If Google understands the meaning of your content better then they can display extra content in the search results listing that will increase your click through rate. In the following image you will see an example of images and the review ratings displayed as part of the preview description for a page.
Below is an example from our site of the usage of the LocalBusiness structured data in our footer.
Get started on implementing rich snippets and microdata today with Google's rich snippet documentation. While you are working make sure to validate your HTML with Google's structured data testing tool.