Sitelinks have become a swipeable carousel, while callouts and structured snippets now appear in the same area of the ad as your description text. In order to understand this change, it’s important to understand the purpose of sitelinks: They exist to get people where they want to go as quickly as possible. A click on a sitelink tends to be a better user experience, so Google wants people to click on sitelinks more often. What does this mean for you? To state the obvious, it could mean more clicks on your sitelinks. In theory, this should also mean more conversions for you. Sitelinks are a way to prequalify a visitor to your site. If they’re swiping on that carousel to find the right link for their situation, you can be more confident that they’ll like where they land. Get the full story at Search Engine Land