Google has confirmed to Search Engine Land that they are experimenting with a new feature in the search results. I happened to stumble upon a search results snippet in Google that showed “tags” within the snippet. The unusual part of this was that the “tags” didn’t offer any additional functionality.
Google would list “tags” relevant to the page content in the actual search results listing snippets. You were not able to filter by those tags, click on them or anything. It just listed “tags” in the snippets without showing you anything more.
Here is a screen shot:
Google confirmed this was a real experiment but would not explain what they are for and how they should work.