“Responsive Web Design is hot. Practically every company I speak to, around the globe, is either going responsive, has gone responsive, or – at the very least – giving it serious consideration. So, with all this buzz, how many websites are actually responsive?
To answer this question, I ran a test on the top 10,000 websites (per Alexa), and checked if they are responsive … ”
The article continues with very detailed overview of performance and popularity of Responsive Web Design. Read more at: