Within Office 365 Groups, there’s a feature called Connectors. It allows you to link to popular third-party services without ever having to leave Outlook. This means relevant content and updates that you want are sent immediately to your group feed, making workflow more seamless.
Office 365 Connectors explained
Office 365 Groups: your apps under one roof
Nowadays, people have dozens of tabs open in their web browsers to access services that help them with work or catch up on social media. The problem is, it’s easy to lose track of all these opened windows and apps just to get to the information you need.