It's actually been deleted from the blog (probably because it was supposed to be posted on the Google+ blog, not the AdSense one), but the original feed content is still available, for now, at http://feedproxy.google.com/~r/blogspot/tuAm/~3/30qIWIcbTMk/social-fridays-gain-visibility-by.html
According to the feed, it's all about verifying Google + pages, ie making an official link between a page and a website. They say
Verifying your +page confirms that the +page actually belongs to you. Once your +page is verified, it�ll appear with a checkmark designed to help our users find what they�re looking for.
and
Verified +pages that are popular and engaging may appear on the right side of relevant Google.com search results, for users who are logged in. .... Please keep in mind that to be eligible, the +page also needs to be active with regularly-updated content
To verify your page, you need to
To verify your page, you need to
- Link your +page to your website: Fill out the �About� section of your Google+ page, being sure to enter your site�s top-level URL.
- Link your website to your +page: Add a Google+ badge or code snippet to your site, ...
- Complete ... [the] verification request form.
- ... continue posting regularly to your +page ....
The verification form, at http://support.google.com/plus/bin/request.py?hl=en&contact_type=page_verification&rd=1 states the conditions a little differently (boldness mine);
- Your Google+ page must be authorized by your commercial entity, organization, brand, or product.
- Your Google+ page�s profile must contain a link to your organization�s website.
- Your organization�s website must connect to your Google+ page, by adding the Google+ badge or by adding a snippet of code.
- A meaningful number of people must have added your Google+ page to their circles.
This will be simple enough for most of my sites - I own the website and the G+ page. Though it should be a little more challenging for one or two community groups that I do things for, where the ownership is a little ore "vague".
My only decision is whether to start the verification process now, or to wait for this to be announced on the right blog!