lautr

This Plugin implements an easy configurable Widget which can display your top Google search querys (Keywords) and link it to your internal search like a tag cloud by accessing an Google Analytics account. 
You can use its default font sizes or override them by the classes that are applied. It is recommended to have APC installed to cache the Google API requests but its not necessary. 
It is written and currently maintained by <a href="http://www.lautr.com" rel="nofollow ugc">Johannes Lauter</a> and uses the Google Analytics API PHP Class from <a href="http://www.electrictoolbox.com" rel="nofollow ugc">Chris Hope</a>.

WP Google Search Query Widget WordPress Plugin

Implements a Widget with your Top Google Search Querys

stephan.gerlach

This Plugin lets you set some shortcodes and display content depending on what search engine the visitor came from and what the person searched for.
This way you can make sure you can show your visitor content they are looking for.

seKeyword

Display content depending on search engine and keywords

WP Google Search Query Widget WordPress Plugin vs seKeyword