Under all of the components within the administration portal, there are a number of additional portals for administering specific services, under the expandable heading Admin centers:
It's outside the scope of this chapter to go into any detail regarding those administrative centers; most are covered within their own chapters. (Note that this screenshot comes from a tenant which also has Dynamics 365 and Intune; neither of those are within the scope of this book, as neither are technically a part of Office 365. Intune is part of Windows Azure, and Dynamics 365 is its own separate ...