The Future Of Mobile

http://www.businessinsider.com/future-of-mobile-slides-2012-12#-1

Android vs. iOS: Apps

http://jeremyjohnsononline.com/2013/01/11/android-vs-ios-apps/

How to Use CSS3 Multiple Backgrounds

http://www.hongkiat.com/blog/css3-multiple-backgrounds/

Using Unprefixed CSS3 Gradients in Modern Browsers

http://www.webappers.com/2013/01/11/using-unprefixed-css3-gradients-in-modern-browsers/

Design Trends 2013 - Flat and Minimal

http://abduzeedo.com/design-trends-2013-flat-and-minimal

50 Fantastic html and css web elements for free

http://www.antsmagazine.com/web-development/50-fantastic-html-and-css-web-elements-for-free/

CSS Techniques for Retina Displays

http://www.sitepoint.com/css-techniques-for-retina-displays/