Try wordtracker, google suggestion,keyword elite I use but its not free Ill be creating a list and hopefully others can add to it as well you can add any you find as well Keyword research tools
I really only use keyword elite, but have heard good things about wordtracker. I use keyword elite pretty much because i bought it 2 or three years ago and it works. If it aint broke don't fix it right! If your only doing one sight just stick with the free stuff. I rarely research keywords anymore. I just try to beat the competition. I actually like competitive ones since they usually pay more and once your on top its easier to stay since everyone else is shooting for words with less competition. Anyways when you pick the tool you use add it to the list of keyword tools here and if you would with your opinion on it, Your opinion is much appreciated.
here are some tools: -- http://google.com/insights/search -- https://adwords.google.com/select/TrafficEstimatorSandbox -- http://www.google.com/sktool -- http://www.google.com/trends -- http://www.google.com/trends/hottrends -- http://www.seochat.com/seo-tools/keyword-suggestions-google/
I'm using these two keyword suggestion tools: adwords.google.com/select/KeywordToolExternal freekeywords.wordtracker.com/
wordtracker free version is way off and not a good tool at all to use. google external tool is a good one to use
Guys thanks for the help... I'll try all these and let you know which one is the best to use. But i prefer free tools.
If you're looking for keyword research then use keyword elite. Its a great software and easy to use and works well.
Wordtracker, and many other free keyword tools available on the web you can select as per your choice.