You’re not alone. It looks like Google has been doing some updates and changed the layout of some of their pages. You probably all remember having a list of links at the top of your Google Mail where you could get to the calendar, drive, etc. You may have recently noticed that those are missing. They aren’t missing, they have just been moved. They are instead under a new cube on the right hand side. If you click on that cube if will expand and show you your apps (calendar, drive, etc).