View Your Google Calendar From Within Gmail

From the Gooru:

Knowing your schedule at all times is vital when reading and composing emails. If someone asks you to get coffee later this afternoon, you should know what times you are free. Obviously, you can open up your Google Calendar in another tab and check what events are on the horizon before responding, but wouldn’t it be nice if you could see this information right in Gmail? Now you can.

Read more and view a demo here.