HTML5 is a standard for displaying multimedia content on the web, and web companies are increasingly adopting it. Last month, YouTube opted for HTML5 as the default video format instead of Flash. According to an infographic from Template.net, HTML5 has many benefits for social and mobile sites.
HTML5 has already gained a lot of popularity among the top sites on the web. More than 300,000 of the top 1 million sites use the standard, 30,000 of the top 100,000 sites use it, and half of the top 10,000 sites use it.