Once again, I am asking for the wisdom of DUers in career matters

[Curmudgeoness]

2. My experience with huge companies is

that it takes forever for them to make decisions or to move on things.

But with that said, I would not wait around for this position. Keep looking, and if you get another offer take it. If at a later date, Amazon does contact you and want to hire you, it isn't the end of the world to leave the position you just took to go to Amazon. Employers can make that decision easily enough to get rid of people, so leaving is not a problem. In the meantime, you have not "sat by the phone waiting for a call", you are employed.