Yo your subscribers when you publish a new post!
Signup for an API key at yoapi.justyo.co, for "Callback URL" put in your homepage with a trailing slash.
Put your API key in the YoPress settings and hit save changes.
Then tell your visitors to Yo your website's username, or use button.justyo.co to generate a button.
Now when you publish a new post your visitors will get a Yo with the link!