On Friday, Moz posted on Google+ a user interface test that shows a couple things.
(1) It shows the yellow ad label being tested again.
(2) Shows a new format for displaying images within the web results. This time showing larger image thumbnails with a link to see more images.
(3) The titles and URLs in the search results are different also. The URL is not underlined and the titles and fonts in the snippets look smaller and less bold. The titles have a larger size also.
Here is a picture:
Forum discussion at Google+.
