Kiwi cloud-based accounting software company Xero was impacted by the outage for a number of hours. The company switched its accounting to AWS last year.
Affected websites and services included Quora, Business Insider, Giphy, image hosting at a number of publisher websites, filesharing in Slack, Trello, Brightcloud, and many more.
AWS has been thought of as one of the internet's most reliable services and hosts some of the internet's most visible companies, including Airbnb, Expedia, Netflix, and others.