This post, gives you the overview of new Page model in SharePoint Modern UI and how to create from SharePoint site & where it is available.
I have detailed my experience with additional features available in Site Hub content section from Site Contents page in a SharePoint modern UI update.
This article explains how to become the first user to get the latest updates from Office 365 environment
This article will show you how to un-lock the user to access Office 365 sites & services using Office 365 admin center.
This article will show you how to lock the user from accessing Office 365 sites & services using Office 365 admin center.
This post shares my first experience of SharePoint Document Library in modern look
This post covers the Modern experience UI for Site Contents page in Office 365