Creating an AWS account
In order to start using SimpleDB, you will first need to sign up for an account with AWS.
Visit http://aws.amazon.com/ and click on Create an AWS Account.
You can sign up either by using your e-mail address for an existing Amazon account, or by creating a completely new account. You may wish to have multiple accounts to separate billing for projects. This could make it easier for you to track billing for separate accounts. After a successful signup, navigate to the main AWS page— http://aws.amazon.com/, and click on the Your Account link at any time to view your account information and make any changes to it if needed.