You can share your campaigns on any social platform, and anywhere that you can paste a URL. This is great way to expand your reach, and leverage your fans and followers in other places, besides just your email lists.
In your Email Marketing account, click Dashboard.
Find the campaign you want to share, and click Share.
Click in the Copy the URL field, select the whole URL, and copy it.
Paste this URL into any post, or page, or comment. Paste it anywhere you can put a link. This will direct people right to the web version of your campaign.