“Good design is all about simplicity and consistency. At Facebook, we show you a lot of information about the people you care about and give you the tools to share information about yourself with your friends. Design is the problem of making content information easy and intuitive to use, and making sure that the information presented to the user is simple to understand and not overwhelming. To help achieve those goals, we favor reusing shared components, having a fairly limited color palette, and thinking about each pixel in the context of “does this make our site easier and simpler to use?”
(Source: facebook.com#!)
