Here's a service status page for our cloud suppliers
BT Service Status:
https://btbusiness.custhelp.com/app/service_status/
Easynet Status:
https://support.uk.easynet.net/support_status.aspx
Zen Broadband
https://status.zen.co.uk/
Office 365 Service Status
https://status.office365.com
Dropbox Service Status
https://status.dropbox.com/
Sales Force Service Status
https://status.salesforce.com/
Google Apps Service Status
https://www.google.com.au/appsstatus
Cloudflare Service Status
https://www.cloudflarestatus.com/
123reg service status
https://twitter.com/123reghelp?lang=en
Here is a service you can check to see if a website is down for just you or everyone
https://downforeveryoneorjustme.com/