Google Sitelinks are links to a site’s interior pages which Google helpfully puts at the bottom of popular websites in their result sets.

Google generates these links automatically, based on what it thinks is the most common and relevant pages in your site.

You can remove sitelinks you don’t want by using Google Webmaster.

Here’s a great example of why you should always monitor this section and remove inappropriate links! (See highlighted section starting with ‘Man caught with …’ )