Google Calendars provides a few special interest calendars that you can subscribe to with your account. It places those events on your calendar, so you can be aware of what is going on. I find these quite interesting and helpful. I especially like that you can add holidays to your calendar without having to look them up. Being a sports fan, I also like that I can subscribe to the schedules of my favorite teams. I can turn them off and on, depending on when I want to see them. Here is a tutorial video showing you how you can subscribe to some special interest calendars.