If you have a Google Custom Search Engine (CSE), there is exciting news for you. Google has recently launched a new feature which allows you to show the most popular queries for your site on the home page. The data is regularly updated and shows the most recent queries automatically.
The post at Google Custom Search Blog explains how to show the queries.
To show your CSE's popular queries, go to the "My search engines" page (after you've signed in) and click on the "statistics" link. Cut and paste the popular queries code where you would like them to appear on your website.
What's more! You can subscribe to the feed for your CSE popular queries using your favorite feed reader too. Philipp Lenssen says that "Not only will this allow you to show others your top queries – and have the useful “search web pages” option in results (it’s missing in AdSense Site Search) – but you can connect the CSE to your AdSense account as well to make money from searches."