Valuable piece of information you can capture on your landing page is the searching user’s keyword. Using http://www.pagesatu.com/adwords of having one keyword per ad group should already tell you what the consumer is looking for. However, if you use exact phrases or matches, you may not have a complete search term. This information is invaluable, as it will tell you what the terms consumers are using to find you ads. You will discover what niche that brings consumers to your website. You can then use this to target other similar keywords. Plus you can change your landing page for search terms.
The dynamic keyword insertion built into Adwords works a little differently. assumes you have many keywords in your web, and therefore can not enter a single keyword from many into the ad. Instead, Adwords will use search terms because of dynamic keyword insertion. You take the search term and add it to the database so you have a record of each search term used to reach your website. You will learn exactly what consumers are looking for when they come to your website.