It’s been a good week for Mr. Mark Zuckerberg. First Facebook had its first ever day of 1 billion users online and then WhatsApp hits a new milestone, reaching 900 Million Monthly Active Users. In web analytics, MAU is an important metric to measure performance and growth.
Facebook is having a run of milestones lately.
Facebook bought the app at the start of 2014 and during that time the userbase has more than doubled, with 100 million people joining the service in the past four months alone.