Google AdWords Ad Extensions are a way for advertisers to extend their ads with deeper, more relevant content to searchers in the form of additional links within a text ad. Ad extensions provide extra links to a standard text ad to link to additional pages within your website versus one link to one landing page. Google has expanded their ad extension options from its original release of Sitelinks over two years ago.
Below is an overview of various ways advertisers can implement ad extensions.
Location Extensions: Expand your ads to include location and contact information for your customers. Your business’s address(es) and phone number(s) are included with your ad text and the extensions attract customers who are interested in businesses in your area.
Call Extensions: Increase calls to your business by enabling call extensions which add a phone number to your ad. Customers can easily call your business directly with one touch on their mobile phones. You can also reach users on desktop or laptop devices by enabling call extensions with forwarding phone numbers.
Sitelinks: Increase your real estate on the search engine results page by implementing Sitelinks that can add up to four additional links to your standard text ad.
Product Extensions: Sync your Adwords and Merchant Center accounts to promote your products within your ads.
Social Extensions: Social Extensions allow Google+ users to see which people within their network have +1’ed your website.
Mobile App Extensions: Promote your mobile app via Google AdWords and users can download the app straight from a paid search ad.