For creating a NewsMAN account go to https://www.newsman.com/ and click Sign up (upper right) or Sign up for free button (center):

You will be redirected towards the create account form. When you are done filling it, press Create my account:

You will receive a confirmation email for the account you have just created.
In order to use your account, you must activate it in 3 steps:
- Complete your profile
- Create a list and validate your domain
- Protect your account with two-step authentication