Within your account you can generate some HTML that you can put on your website that allows people to sign up to your newsletter. There is no cost for this - it's included in your account.

When someone signs up from your website, they are added to your mailing list with a status of 'Pending', and are sent an opt-in confirmation email. Once they confirm, they are then changed to 'Active' and will receive the next newsletter you send to that list.
 

All newsletters you create can be accessed as a normal web page, at no extra cost. You can then use the URL of the web page in a hyperlink from your website, creating a list of previous newsletters on your site.

All newsletters you create in your account will be available as long as your account is active.