What is schema.org good for besides SEO?

Schema markup is code (semantic vocabulary) that you put on your website to help the search engines return more informative results for users. If you've ever used rich snippets, you'll understand exactly what schema markup is all about.

Schema.org is good for your site visibility and an overall traffic increase on SERPs. Recently Google implemented Structured Snippets. These are snippets supported by a structured data-rich description of your website pages which appears in the Google SERPs.Schema.org is the best markup specification recommended by Google.