News you want to use week 5.

Mark Zuckerberg, Facebook’s chief executive, plans to integrate the social network’s messaging services — WhatsApp, Instagram and Facebook Messenger. The services will continue to operate as stand-alone apps, but their underlying technical infrastructure will be unified. That will bring together three of the world’s largest messaging networks, which between them have more than 2.6 billion users, allowing people to communicate across the platforms for the first time.