1. In product design, the simplest thought exercise is to make additions. It’s the easiest way to make an Old Thing feel like a New Thing. The more difficult exercise is to reconsider the product in the context of now. A now which may be very different from the then in which the product was originally conceived.

    — Subcompact Publishing

  2. Ten principles that contribute to a Googley user experience

    1. Focus on people–their lives, their work, their dreams.
    2. Every millisecond counts.
    3. Simplicity is powerful.
    4. Engage beginners and attract experts.
    5. Dare to innovate.
    6. Design for the world.
    7. Plan for today’s and tomorrow’s business.
    8. Delight the eye without distracting the mind.
    9. Be worthy of people’s trust.
    10. Add a human touch.

    — Google user experience

  3. At Facebook, our design is…

    • Universal
    • Human
    • Clean
    • Consistent
    • Useful
    • Fast
    • Transparent

    — Facebook Design Principles

  4.  Twitter’s six design principles

    Support immediacy
    Emphasize the moment • Be fast • Eliminate friction

    Embrace constraints
    Understand limits • Establish rhythm

    Remain flexible
    Monitor trends • Adapt to behaviors • Be human

    Think democratically
    Listen to feedback • Build trust • Fight for our users

    Be open & transparent
    Aim for clarity • Make it obvious • Help, don’t hinder

    Take risks
    Try new ideas • Think big • Iterate often

    Mark Trammell & Karina Van Schaardenburg - Research Behind The #NewTwitter Design