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http://www.webdesigndev.com/10-parallax-plugins-and-tutorials/
http://www.webdesign.org/how-to-create-a-parallax-scrolling-website.22336.html
http://webdesignledger.com/parallax-tools-and-techniques
http://code.tutsplus.com/tutorials/simple-parallax-scrolling-technique--net-27641
http://www.javascriptkit.com/dhtmltutors/parallaxscrolling/index.shtml
http://oshyn.com/general/web-development-trends-parallax-scrolling