Facebook is becoming far more than just a social media network. The company is holding its largest event of the year, F8 to explain its growth strategy. Mark Niu filed this report from San Francisco.

Highlights:

• The Facebook ecosystem is rapidly evolving into a family of apps. In addition to Facebook’s 1.4 billion users, CEO Mark Zuckerberg showed how Facebook Groups and Messenger combine with acquisitions WhatsApp and Instagram, to add another 2.3 billion users.
• Facebook has grown chiefly due to the work of developers within its own company, but now it’s opening up to outside developer talent by launching the Facebook Messenger Platform.