First seen in side scrolling video games from the 80′s, Parallax Scrolling is a special technique that gives an illusion of depth in a video game, or in today’s case, a web site. Parallax scrolling uses multiple layers to create the illusion of a 3D space, where background images move slower than foreground images. When used in web design, it can add a great sense of depth to the look of your site and is best used as a header, footer, or background. The effect can be created using CSS and some JQuery plugins (I’ll leave that up the the dev team). To experience this technique in action, check out Silver Back App. You’ll have to scale your screen width to get the full experience. Also, The Old Pulteney Row to the Pole web site uses a top down parallax that is super sweet. Be on the lookout for more designs like these popping up in 2011. For more info and how it can be done, check out Think Vitamin’s post on how to recreate the silverbacks parallax effect.