Google have recently announced the roll out of one line sitelinks.
Sitelinks have been around for quite sometime but, until now, have only ever appeared below the first search result for a given term. With the development of the new style – a single row – Google can now start showing sitelinks for multiple results.
Below is an example of a one link sitelink, albeit this is only showing for the first result:
There can be a maximum of four sitelinks per listing and these will show just above the page URL. For website owners, Google hope this will result in more traffic and for searchers, they should gain quicker access to areas of a site that they may not have discovered.