Google is now showing a "claim this business" link on business listings that have not been verified and claimed, within the Google search results.
You may see this link come up more often these days as it seems Google began showing the link a few days ago.
Here is a picture from Joy Hawkins as she posted on Google+.
Google has been cracking down on unverified business listings for some time now and I guess this is a way to get more of those unverified listings claimed by the business owner.
Forum discussion at Google+.
