From Mark Zuckerberg
"We just passed an important milestone. For the first time ever, one billion people used Facebook in a single day. On Monday, 1 in 7 people on Earth used Facebook to connect with their friends and family.
I'm so proud of our community for the progress we've made. Our community stands for giving every person a voice, for promoting understanding and for including everyone in the opportunities of our modern world.
A more open and connected world is a better world.
Thank you for being part of our community and for everything you've done to help us reach this milestone. I’m looking forward to seeing what we accomplish together." (https://www.facebook.com/zuck