Google is enabling three lines of site links in Adwords PPC ads in some cases. Also, Google will allow up to six Sitelinks to an ad (as in our example below).
Sitelinks are only displayed with an ad appears to be a perfect match for a user's search query. For the example below, you will notice six Sitelinks plus specific product links below with prices. Sitelinks are an AdWords extension that allows advertisers to provide up to 10 direct links to specific web pages on their site. Additionally, the sitelinks in organic searches have been beefed up to include more sitelinks.