The aim of Google ads is to convince people to buy something. The words you use in your Google ads are very important. People care only getting their problems solved. For example, before buying a registry cleaner, people always want to know whether or not the registry cleaner can remove all the ad-ware or spy-ware from their computer. They want to know all the features, as well as the price.

What is landing page?
It is the destination URL that people will land on after clicking on your Google AdWords. Designing your landing page with an understanding of what is likely to work will get you close to optimal performance from the start. When people come to your landing page, most of them are only looking for clues to quickly fill their need.