2Dropbox
3Adobe Creative Cloud
4Gmail
5Microsoft Exchange
6Facebook
Facebook’s most recent outage in September had users in several countries hitting refresh on their browsers to no avail. Twenty minutes later, the problem was solved, but some of the damage was already done; hundreds of thousands of dollars’ worth of damage for the company. Facebook pointed to an infrastructure change as the cause of the outage.
7Apple
8ESPN Fantasy Football App and Website
9iOS App Store
10WhatsApp
11Verizon Online Billing and Activation
For two days this summer, accessing online billing details wasn’t an option for some Verizon customers. New subscribers also had issues activating their phones. The #VerizonFail hashtag (and frustrations that came with it) could have been avoided with monitoring.