Your visitors can subscribe to your website in various ways. First, they can easily subscribe thanks to the Member block. To do so, you just need to insert a Member block by drag and dropping it to your website, which will enable your visitors to subscribe simply by clicking on a link. Also, if you have a Store block or a Forum block, any visitor making an order or leaving a message on the forum will automatically become a member of your website.
From the My websites page, you can access the list of your members as well as their publications and orders, by clicking on Blocks, then Members.