[jeffbarr]

That's a really good point, and one that I will be bringing up with my manager immediately after re:Invent (I am part of the AWS team).

[chimeracoder]

If I remember correctly, it has to do with disclosure requirements.

Corporate-IR (or whoever runs that domain) meets the criteria/is authorized for disclosure of information to investors.

Other companies use them too, for example NVIDIA: http://phx.corporate-ir.net/phoenix.zhtml?c=116466&p=irol-ir...

[smackfu]

Yeah, think of something like earnings reports. It's very important that no one gets early access, and very useful to have a third party handle it so you can prove that no one has early access. And if the third party screws it up, they get investigated by the SEC, not you.