Google AdWords has a interesting ad type known as Dynamic Search ads. This type of advertising is actually a very effective method to implement so clients and customers can find exactly what your offering online. If you have a well-developed website with a large stock inventory such as a car yard or record store these types of ads can increase your ROI immensely.
They work by scanning your websites content for keywords that have been missed in your normal search campaigns. The landing pages and ad Titles are also dynamically generated, which continually keeps your ads having a high relevancy score and saves time. A general meta description is the only user implantation needed. This article explains how Dynamic Search Ads work, and how they might benefit you. For instructions, go to Create Dynamic Search Ads.