Just like Adsense for Content
places targeted ads on your content pages, Adsense for Search places
targeted ads on the results page of the search set in motion on your
page.
You can use the standard Google search box
on your site and the user can then search the web or even your site.
When you feel more comfortable, you can change the look of the Google
search box, essentially customizing it by changing the colors and using
your logo.
The best thing about Google Adsense for Search
is that you can track what your visitors are searching for. That is,
if the search has two or more hits. Unique queries will not be
tracked. But you can see the top 25 searches performed from your
website by clicking on the Advance Report from the Reports tab and
specifying a date range.