Facebook hits 1 billion users in one day ZDNet

Facebook co-founder and CEO Mark Zuckerberg has announced that the social network on Monday saw 1 billion users log in during the course of a single day. "We just passed an important milestone. For the first time ever, 1 billion people used Facebook in a single day," Zuckerberg said on Thursday afternoon. "On Monday, one in seven people on Earth used Facebook to connect with their friends and family. See how the cloud is disrupting traditional operating models for IT departments and entire organizations. "When we talk about our financials, we use average numbers, but this is different.