Try Google Insights and the Google AdWords external KW tool too.
8:08 pm on Nov 27, 2008 (gmt 0)
The Google AdWords external keyword tool and the Trellian Keyword Discovery tool are the two I've come to trust when I want something at a granular level, and focused around an already-specified topic.
5:22 am on Dec 3, 2008 (gmt 0)
i think google trends works best since you can compare different words at the same time but am not sure how reliable that info is
2:48 pm on Dec 4, 2008 (gmt 0)
Most people use Google,and it can easy to remember