try to review your keywords after you have placed them. I found this analyzer quite interesting, and looks somehow reliable. http://www.submitexpress.com/analyzer
can't tell which are accurate since some of the KW suggestion tools are still not updated.. what i usually do is compare the results from different reliable tools and make my own KW analysis
I prefer overture but sadly its still not updated,. so for now I used google adwords,. As what chrishirst said,. there is no accurate tool, just a best tool which we can use as a guide
wordtracker seems goodd only for google as far as I know.
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