At the bottom of your web page, you will likely see a widget that includes Newsletters, Subscribe, Print, and Share. The link for Newsletters links to the broadcast emails that you have chosen to make public (e.g. add to your Newsletters inventory).
When you create a broadcast email, there is a question for 'Add to Newsletters'. If you check YES, then the broadcast email will be added to your public newsletters page and visible when a visitor clicks the newsletter link on your site.
Note: if you have not created an email campaign or added an email to your newsletters, then this page will be empty.