can you add some type of script to your landing page so that it
displays the google adword keyword your visitor clicked on? in other
words if the visitor clicks on "widgets" your landing page could
display Thank you for your interest in widgets, please read below. And
the word "widgets" would be the variable that would change based on
the keyword. I'm figuring it exists i need the code.

Hi,

To find out what are the keywords that bring you a visitor you need to
analyze either referer field or query params.

1. Query: You may analyze query string to find out the keywords. In
this case you need to specify the URL for your landing page as
http://www.mysite.com/landing1.htm&k=keyword.

+ You don't need to know the format of the referer field
- You cannot put more then one keyword for you ad or you won't know
what keyword the visitor has typed.

2. Referer: You may extract keywords from the referer HTTP header. I
am not sure that the format of the referer field is documented
somewhere but you may analyze it and find out its structure.

+ You may have more than one keywords per ad
- Need to find out structure of the referer; the structure have to be
checked from time to time as it might be changed

3. The combination of the aboves method.

+ The chance to extact inappropriate keyword is low
- Hard to maintain