Apple Online Services Status Page
Just because Apple may be one of the biggest companies in the world doesn't mean it without it's own share of outages. Thanks to new Apple's online service stages pages we can all see a detailed report of any services, Stores or iCloud issues.
Scrolling down the page reveals a timeline showing recent outages including those services which were affected. It also shows how lonely outages lasted, and the number of users affected. It'll be interesting to see how well the service page holds up when there is a problem but for now it's nice to see some transparency with regards to apples service offerings.
You can see the Apple online services status page here