Responsive web design means that you don't have separate mobile, tablet, and PC versions of your site: the site adapts to whatever size screen it's being displayed on. Regardless of what device a visitor is using to access your site, they'll see all of the content you have to offer (no more partial-content mobile versions of sites) and they'll see it in readable way.
With a 55% increase in smartphone subscriptions in 2012 alone, responsive web design is the future of online marketing.
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Example:
Microsoft site view in Desktop.
When the screen gets smaller, elements stack differently:
Responsive design is a clever idea that, with the right set up, will cut down on web maintenance and content creation. But how does that help SEO? Yes It will surely help.
Which all factors can be improved by using responsive design.
1) Usability
2) Duplicate content
3) Ranking for mobile searches
4) Link building
Switching over to a responsive web design will be a big challenge, but with the way the industry is moving, it’ll prepare you for the future, and put you a step ahead of your competitors. I suggest designers must try these type of design with the website so that the website never needs to be rebuild to support mobile devices having different screen sizes.
Read More @ http://www.seomoz.org/blog/seo-of-responsive-web-design
For Designer's Help:
Making your site responsive now, when the topic is hot but largely unused, will get you noticed. Here are a few great examples:
http://blogs.adobe.com/digitalmarketing ... analytics/
http://inspirationfeed.com/inspiration/ ... te-design/
http://www.clicknewz.com/5984/benefits- ... -examples/