Google was the first engine to combine videos, images and other non-text assets into its search results (years ago with Universal search), and today these items continue to provide SEO benefits. Videos give a business more potential visibility in organic search. Particularly in mobile, which now accounts for the majority of searches, videos can have an advantage over text-only results; depending on the query, the answer may be easier to watch than to read on a smartphone, and the search engines know that.