Chrome: Previously mentioned UpTo first came on the scene as an Android app that allowed users to subscribe to events such as sports, TV and movie schedules, and concerts. Now the company has released a Chrome extension to add the same ability to Google Calendar on the web.
The extension created a sidebar in Google Calendar that displays a list of events comprised of feeds you subscribe to. If you find a particular event you want to keep track of more closely, you can add it directly to your calendar.
UpTo [Chrome Web Store]