There are two types of account:User Account: This gives you all the above benefits.
Should you wish to license the use of an image, this account allows you to do so using your credit card (although credit card details are not required for you to register).
You can also upgrade your user account to a corporate account at any time.
Corporate Account: For professional business users.
This gives you all the above features, plus these added benefits:
Added budgetary flexibility - you can use a credit card, or pay on account.A credit limit to suit your needs.30 days credit before you need to make your payments.Access to high-res comping images for layout purposes.