Many AdSense publishers find themselves looking for new topic ideas from time to time. Here’s a quick and easy way to find new niches to explore that relies on the AdWords keyword tool (which is free) and various popular news/interest sites (also free). This techniques give you broad ideas for profitable niches, but it’s up to you to decide if it’s worth pursuing or not.

Build yourself a list of popular news and general interest sites, high-traffic sites whose content changes a lot and is geared towards a general audience. Sites like Yahoo!, Wikipedia and CNN fit the bill. If you’re a techie you might also want to throw in more techie-oriented sites like News.com.
Go the AdWords keyword tool and select Website content under How would you like to generate keyword ideas?
Now on the right type in the URL of one of the sites in your list, being sure to check Include other pages on my site linked from this URL
Press the Get keyword ideas button. The keyword tool will crunch away for a minute and analyze the content of the site you gave it to come up with a list of relevant keywords complete with bidding costs and search volumes.
So what do you do with this information? Some people will tell you to enter a large value for the maximum CPC bid to see which of the niches pay a lot per click. You can do this, but take the values you see with a grain of salt — see my high-paying AdSense keyword lists series for the reasons why. Don’t worry too much about maximum values. Look more at volume and competition estimates. Try bidding down the CPC value to see at what point bid positions shift from the 1-3 range to the 4-6 range.

The goal here is to come up with ideas for things you wouldn’t have thought of yourself while avoiding niches that are obviously going to pay you just a few cents per click. Do this procedure for each of your news/interest sites and do it over the span of a few days and you should come across several potential niche ideas that hold promise.

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