With the introduction of the Campaign Management screen in 3.4, you have the option to make campaign archives publicly visible. Meaning you can share them with non-subscribers to be viewed on your site.
Public campaign archives will list all the sent broadcasts related to that campaign. Funnels and email templates will not be included, and campaigns are hidden by default.
There is a Campaigns Archive screen that shows a list of all public campaigns.
Click on a campaign to see the archive of available broadcasts.
Because these are public they can be shared on social media or sent as a direct link, without the recipient needing to be a subscriber.
Broadcasts not associated with a public campaign will not be accessible via the archives.