diff --git a/README.md b/README.md index 7b63221..2c5a632 100644 --- a/README.md +++ b/README.md @@ -135,7 +135,7 @@ General Information - In general, “[cloud computing](https://en.wikipedia.org/wiki/Cloud_computing)” can refer to one of three types of cloud: “public,” “private,” and “hybrid.” AWS is a public cloud provider, since anyone can use it. Private clouds are within a single (usually large) organization. Many companies use a hybrid of private and public clouds. - The core features of AWS are [infrastructure-as-a-service](https://en.wikipedia.org/wiki/Cloud_computing#Infrastructure_as_a_service_.28IaaS.29) (IaaS) — that is, virtual machines and supporting infrastructure. Other cloud service models include [platform-as-a-service](https://en.wikipedia.org/wiki/Cloud_computing#Platform_as_a_service_.28PaaS.29) (PaaS), which typically are more fully managed services that deploy customers’ applications, or [software-as-a-service](https://en.wikipedia.org/wiki/Cloud_computing#Software_as_a_service_.28SaaS.29) (SaaS), which are cloud-based applications. AWS does offer a few products that fit into these other models, too. - In business terms, with infrastructure-as-a-service you have a variable cost model — it is [OpEx, not CapEx](http://www.investopedia.com/ask/answers/020915/what-difference-between-capex-and-opex.asp) (though some [pre-purchased contracts](https://aws.amazon.com/ec2/purchasing-options/reserved-instances/) are still CapEx). -- AWS revenue was [about $5 billion as of 2015](https://awsinsider.net/articles/2015/04/23/amazon-earnings-q1-2015.aspx) (roughly a fifth of Amazon.com’s total revenue). +- AWS's annual revenue was [$7.88 billion as of 2015 according to their SEC 10-K filing](http://phx.corporate-ir.net/phoenix.zhtml?c=97664&p=irol-sec&control_selectgroup=Annual%20Filings), or roughly 7% of Amazon.com’s total 2015 revenue. - **Main reasons to use AWS:** - If your company is building systems or products that may need to scale - and you have technical know-how