Facebook Outage Breaks WhatsApp and Instagram, and Stocks Drop: Live Business News - The New York Times
https://www.nytimes.com/live/2021/10/04/business/news-business-stock-marketFacebook is down, along with Instagram, WhatsApp, Messenger, and Oculus VR - The Verge
https://www.theverge.com/2021/10/4/22708989/instagram-facebook-outage-messenger-whatsapp-errorFacebook-owned sites are down | Hacker News
https://news.ycombinator.com/item?id=28748203Facebook’s Apps Went Down. The World Saw How Much It Runs on Them. - The New York Times
https://www.nytimes.com/2021/10/05/technology/facebook-down-ig-down-whatsapp-down.htmlWhat Happened to Facebook, Instagram, & WhatsApp? – Krebs on Security
https://krebsonsecurity.com/2021/10/what-happened-to-facebook-instagram-whatsapp/What took Facebook down: Major global outage drags on | ZDNet
https://www.zdnet.com/article/what-took-facebook-down-major-global-outage-drags-on/