http://www.google/coop/cse/

you can visit web page by the url,it will give your a big surprise, come on, let's feel it powerful charm.

free version include some adsense now , but it's not problem, the adsense result have
a friendly face to show a html page.

it isn't have adsense in enterprise level web page,but you must pay for some money,if
you are personal web site ,you mey be use free version.

through CSE , you can define which path can be search in your website. so you can
cover some file or data for secrecy.

the CSE will be index your website page content to cache automation without your setting secret content.

CSE will be search your define range without other website content ,it only your defined website content,this is it particularity, and print result in your browser.

will go on... wait