It's easy to do and takes very little time or effort. Basically it involves using your spare domain names to let AdSense generate extra paychecks for you. I'll walk you through it step by step.

The most important part will be getting great content. But don't worry, we have that covered too. After some digging, I went with an inexpensive service called "Why Park?" that automatically builds fully search engine optimized sites in minutes with a few lines of really simple input. They even host the sites for you. Of course I admit I became a little biased toward their service after my first auto generated site got ranked #5 on Google just one week after it went live.

All you need is a free AdSense account. If you still need to get your account just visit http://www.google.com/adsense.

Step1: Get the Best Keywords; Straight from Google!

It's easier than ever to find the best keywords. I use Google's own keyword database to figure out which get the most search volume with the least competition. Give it a try at https://adwords.google.com/select/KeywordToolExternal.

Step 2: Hook Google with a Great Title!

Let's do a real project. Let's say we have a domain name to do with custom cakes. If we enter the word "cake" into Google's free keyword tool, we'll get plenty of great ideas for what's hot. "Cake" might be too general to want to compete against but "wedding cake" and "birthday cake" are both great niches.

Take your most important specific and general keyword phrases and put them together, specific first; general second. Let's use "wedding cake" and "cake". Now separate the keywords or phrases by a pipe (that vertical key over the Enter/Return key). We now have "wedding cake | cake". Now go back and grab one or two more relevant keywords like "birthday cake" and "baby shower cake" and combine them like this "wedding cake | cakes for birthdays, baby showers and more".

Now you've covered all your bases and build a fantastic keyword rich title that won't look like keyword spamming. More importantly it's one that people will actually read. You have singular and plural versions of "cake(s)", which will also help a lot.

Step 3: Get Noticed!

Now we will write a META description that will really get you noticed. This is important. Not only can this tip alone get you ahead of most competitors, but it's also what readers see of your site before they decide to visit. You need to write something for people, but that search engines will like. Don't worry. It's a lot easier than it sounds.

Take all of your keywords and line them up in order of importance. Since "wedding cake" gets more searches than any other, let's start there and use the same logic for the rest. Now we have, in order, "wedding cake", "cake", "birthday cake", and "baby shower cake." Be sure to improve your keyword prominence (relevance based on position) by using your best keyword within the first few words of the description, like this: "Wedding cakes made easy! Get great articles, recipes and decorating tips to make cakes for your special occasion. From triple-layer double chocolate birthday cakes to baby shower cup cake buffets; we have tips to make your special occasion delicious."

As you can see, we used all of our keywords without overloading the text and broke it up a little by adding some detail. It works great! Just try to keep the description at or under 250 characters (including spaces).

Step 4: Add Content That Google Loves!

Why Park (http://www.WhyParkWeb.com) does 99.9% of the work for you. All you have to do is enter your keywords into the article finder provided by the "Research Your Keywords" link located beside the keywords box.

Without using any imagination at all, I found 121 articles in a few seconds... "cake has 98 articles, "wedding cake" has 11 while "birthday cake" has 9 articles and "baby shower cake" has 3.

That's 121 articles total. This might not sound like a lot but at an average of about 1,000 words per article that's the size of an average Harry Potter book.

Add "wedding" and get another 788! That's 909 articles in 10 seconds. You get the idea - more general related keywords can take you over the top and give you a huge, content-rich search engine friendly site, in seconds!

Step 5: Triple Your AdSense Earnings

My click-through rate (CTR) tripled when I switched to this format.

Select ad size 336 x 280. If that's too big, try 300 x 250. And try to make your ad border and ad background colors the same as your Website's background color. It helps it blend in and take away some of the "advertisement" feel. It's also usually best to go with the standard blue hyperlink color for the actual links.

But with all that said, don't be afraid to experiment. This might be the cheapest controlled research you ever come across, so enjoy it. I change my ad colors (but not size) every so often to see what works best but the above method has worked best to date.

Now you're ready! You can do this with no problem. Take back control of your domain names and pocket your own profits. Good luck!