Add keywords for AdSense for search

Keywords are used by Google to make sure that we promote the most relevant ads and pages in the search results for your search engine. Good keywords are words and short phrases that describe any of the following:

• The topic of your search engine
• The content of the pages you want promoted

For example, a search for 'tiger' may yield different sets of results and ads depending on keywords entered.

Website Topic	Keywords	Results and Ads
Golf	golf, PGA, Callaway, US Open	more related to Tiger Woods
Mac	Apple, Mac, OS X	more related to the Tiger OS
Safari	Africa, wildlife, jungle	more related to the animal tiger

SOURCE:  google.com