Wordtracker: What are people searching for on the Web?

What are people searching for on the Web?
That´s a question that many times I ask myself, probably like many other webmasters trying to earn money online, either they run very successful websites or are just a "small fish" blogger, like me.
The truth is, if you want to make money with Adsense, find a niche or even write a keyword rich article, a keyword tool will make your life much easier. I came across this website that provides a keyword tool and I´d like to share a review:

Wordtracker is privately owned company with headquarters in London, UK, that was established by Andy Mindel and Mike Mindel in 1997. They started this company to answer a fundamental question in the search engine industry:
"What are people searching for on the Web?"
Wordtracker provides a keyword research tool that helps website owners and search engine marketers identify keywords and phrases that are relevant to their or their client's business and most likely to be used as queries by search engine visitors.
The keyword tool also determines how many competing sites are using those keywords and can identify the phrases that have the greatest traffic potential. If you´re looking for a keyword tool check out this website, they also have a free version, trials and promotions.