Are you interested in Google ad-sense OR ad - words ? Its good for earning if you know something about it. If you’re just boarding on the Ad Sense train, and looking to find a easy way to make the money, you’ve seen all being pulled of all over the Internet, you might be interested in a tool. G oogle ad words keyword tool is perfect for you. The Most Expensive Ad Words Keywords. While the minimum bid per keyword is 5 cents in Ad-words, the high cost keywords listed above are nowhere near that. Google can make up to $50 per click from the most expensive PPC keywords. Keyword advertising is a highly lucrative business for Google. I know one guy who is making money with a keyword, " online college" The earning of this keyword is $70/ click. United States 88.5% (53,558) India 1.6% (955) United Kingdom 1.0% (578) Canada 0.8% (485) Pakistan 0.5% (296) Other ...