Once your account is created, you can opt-in to receive weekly recommended content e-mails.
Should you at any point want to unsubscribe from them, do the following:
Click on "Account" in the top row of your dashboard
On the next page, click on "Emails"
And finally, unckeck the box next to "Recommend content that I follow and that matches my criteria" and save the changes
If at any point you want to receive the messages again, just check the box and save and you will be sent a new email each monday.