Part of AdWords’ ad extension, sitelinks is not the new kid on the block in the Google AdWords platform.
Even though sitelinks had been introduced for quite a while now, it is still not commonly used in many SEM campaigns.
Are you familiar with sitelinks? If you are, bear with me for the next paragraph. If you aren’t, let’s do a quick recap!
From Google AdWords Support:
The sitelinks ad extension lets you show links to pages from your website, in addition to the main landing page, beneath the text of your ads. Sitelinks appear in ads at the top and bottom of Google search results. You can activate sitelinks – creating up to ten – when you select your campaign’s settings. From the Ad extensions tab in your AdWords account you’ll be able to edit your link text and URLs and see how ads that contain sitelinks perform.