After all, Google invented the Adsense marketing scenario, who better to ask. And they offer this information for free 24/7 with their External Keyword Tool. Google's keyword tool will tell you how many searches, what the average CPC (cost per click) is, what the monthly average is, in both broad match and exact match scenarios.

That's just about everything you need to know to determine the higher payouts for what search terms or keywords in a nutshell. This tool has been around for quite some time and should be your first go to spot for information on keywords. Keep in mind that the information is simply a guideline and may not be accurate down to the penny or absolute number of searches.

Based on my experience, the search numbers (times a search term is searched on) is pretty liberal in broad match. Broad match includes any search that may have those keywords, which may be too big of a catch all. I've seen a search term drop from 200,000 searches in broad term, to 30,000 searches in exact match. So it's always a good idea to do searches both in broad match and exact match to get a feel for a realistic number of searches.

There is also speculation on how current and accurate the data is on the searches. That's why it's best to use this information as a guideline. It will show you enough information to make a determination on the value of search terms. And also consider that Google never stands still, they constantly change algorithms to try and improve the search experience for the users. So the data is in constant flux.

But the Google External Keyword Tool can tell you what you need to know to find the high paying Adsense keywords or search terms. It's free, easy, and full of useful information. There are quite a few websites that want you to believe that this is secret information and very difficult to come by. Not true at all.

One of the most famous terms is Mesothelioma (that's a form of cancer usually caused by exposure to asbestos or other harmful material in the workplace). The reason advertisers are willing to pay so much ($40 or more) is that a lawsuit can net a law firm millions of dollars. Other terms having anything to do with big dollar lawsuits also get bids up to $40 or more.

If you just think about what type of term or keyword can return large payouts, that's another way to find high paying Adsense keywords. In fact most terms that have a lot of competition, involve a high dollar return, are naturally going to be high cost to the advertiser. And these terms will pay more to the Adsense website owner when they get clicked on by a visitor.

So if you look for the high return business areas like mortgages, loans, lawsuits, insurance, and etc. you'll also find the high paying Adsense keywords. Google's External Keyword tool will help you narrow it down to the popularity of the search terms and other important details.

But just like the advertisers drive up the price of the search term or keyword, the competition on the number of websites trying to capitalize on the high paying terms is greater too. So you shoud also determine the amount of web pages that have that term (broad match) or even optimized for the term (exact match – use quotes on the term for exact match).

There are software tools out there that can find the high paying Adsense keywords and also show you the competition for those terms in one place. The cost ranges from $100 to $400, or monthly fees from $40 to $100 if website based rather than standalone applications. But it's not a bad idea to start off learning how to do it manually and although it does take a little longer, it's just as effective.

There's a whole lot more to the Adsense Website business model besides the amount of payout per click. Doing proper keyword research to determine revenue should be the first step. But there are a few other important aspects that you need to understand and implement to be successful.