In my own case, I'm using a list host called MailChimp, which is the friendliest and easiest-to-use list host that I'm aware of. (It’s also free if you publish to fewer than 2,000 e-mail addresses.)
Here are the step-by-step instructions for auto-publishing your Google+ Public posts as an e-mail newsletter via MailChimp:
1. Grab your Google+ ID, which is the long number in your profile's URL. Mine, for example, is: 113117251731252114390
2. Type into your browser URL box plusfeed.appspot.com/ followed by your Google+ ID and hit enter. That URL is now your RSS feed. Mine looks like this: http://plusfeed.appspot.com/113117251731252114390
3. Because this URL does not create a "standing" or existing RSS feed acceptable to MailChimp, you've got to "launder it." Go to feedburner.com, log in with your Google username and password, and paste in your Google+ RSS feed URL into the "Burn a feed right this instant" box. Click Next. Type in a "Feed Title" and click Next, and copy the URL it provides. In my case, the Feedburner URL is: http://feeds.feedburner.com/MikeElgan-GoogleUserFeed
4. Use MailChimp's tools to create a custom template. To initiate an automated e-mail newsletter, click on "Create Campaign" from the MailChimp dashboard, but select "RSS-driven campaign" from the menu that drops down. Every other aspect of creating the newsletter is the same as an ordinary from scratch newsletter on MailChimp. You’ll want to choose the frequency, and experiment with all the settings until it looks and behaves exactly as you want. When it’s ready, just click on the giant button that launches the newsletter.
5. Tell everybody where they can sign up. MailChimp and other list host services give you a sign-up link where people can subscribe. Grab the link and add it to your Google+ profile, and also post the link from time to time on your Google+ profile.
It’s all perfectly automatic. Now that it’s set up, I simply post things on Google+, and everything marked “Public” becomes part of my automatic e-mail newsletters.
This whole scenario is ideal for business people who need to publish an e-mail newsletter to customers, maintain a blog, business page on Facebook and a presence on Twitter – but who don’t have time to be a full-time publishing company. Just post on Google+, and everything just happens.
I have finally achieved a longstanding dream of mine: One service that replaces all forms of online communication – even e-mail newsletter publishing. I no longer have to log in to, manage and cope with dozens of disparate services. It’s incredibly liberating.
And the best part is that all my communication now triggers a comment conversation where people from all over the Internet come together in one place to talk about it. I’ve never had better feedback or interaction with all my people.
If you’re on Google+, please circle me here.