Meta (Facebook) Selects AWS as Key, Long-Term Strategic Cloud Provider
press.aboutamazon.com
press.aboutamazon.com
I don't think this is such a big deal. Almost all major companies (with the exception of the major cloud providers themselves of course) use the public cloud to handle some elastic compute and storage. How much depends on each company, and I wouldn't be surprised if Meta / Facebook moves a small amount of its non-core business operations to the public cloud.
Funny thing is I would have expected them to move it to Azure, given that they have a good partnership with Microsoft and use Office 365 across the company. But I guess they prefer to diversify using Amazon AWS for the "cloud" part and Microsoft for their documents, spreadsheets etc.
What will happen to Open Compute Platform?
Why are they doing this? Facebook still have 2 - 3 datacenter under construction.