Here is something Google has been testing for the last few weeks, a preview for all Google organic listings.
If this change takes place it will have a huge effect on CTR levels for websites with a poor design, so now more then ever design is a important SEO aspect, it will lift the quality of the internet that is for sure and websites which are high on advertising above the fold will see a drop in traffic or sites with a poor design will drop in traffic. This is pretty much a direct rip off Bing who is taking up some decent market share.
Refer to image below from Blogstorm –