As I wrote a couple of weeks ago, I’m beginning to worry that some keyword research tools are becoming skewed by too many niche marketers.

This morning I took a look at the free WordTracker tool, using the keyword phrase “tooth whitening”. Here are the top 20 results:

185 tooth whitening
144 oakland tooth whitening
107 tooth whitening california
106 san francisco tooth whitening
98 michigan tooth whitening
96 tooth whitening san francisco
95 new york tooth whitening
93 palm beach tooth whitening
90 los angeles tooth whitening
90 maryland tooth whitening
87 silver spring tooth whitening
82 fort worth tooth whitening
82 tooth whitening los angeles
80 beverly hills tooth whitening
80 tooth whitening colorado
77 rockville tooth whitening

This is insane. Obviously too many of us are doing geographically based searches for hot AdSense niches, as per Court’s Colorado Lasik Surgery case study. And I’ll be the first to admit that I’ve been doing the same thing; I registered three domains like this recently, all based on research from the free WordTracker tool and from Keyword Elite.

One of them is featured above, and I suspect I may have bought a useless domain … sure, it’s targeted, but I have no idea if it actually gets real searches or not.

I can cope with the loss of a few bucks on the names, but I’m frustrated about the amount of time and effort I put into research, and the time I’ve spent building out the first of them. At this point, I’m not sure whether to put any effort into the other two or not … and I’m certainly gun-shy about doing any research for other sites.

So, Court, I’m reaching out to you … do you have any suggestions for keyword research where we’re not going to trip over each other like this?

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