So how do you know which keywords get searched for the most? There are literally hundreds of keyword analyzers on the web.Only one has passed the test of time and to-date recognized as the authority on keyword searches: WordTracker. At the time of this writing, They are number one , not just because they have largest following , but because their database spans 120 days, not just a single month like some others.
I used google adwords as a tool to know the searches of certain keyword. Some prefer Overture but I think its not advisable since it still not updated.
Wordtracker is definitely the most useful keyword tools out there. A lot of time I would just check on my reputable competitors site to see their keywords. You can also use google trends which kinda gives you an overview of your keyword. Selections on trend maybe limited though.
just like what those tools title suggest.. "keyword suggestion tools" which is not that accurate.. they just give some advice or idea = estimate result.. so its better to use other alternative way to find the right kws...
Google Tool, Wordtracker and there are some good free ones as well, check this one out seems to work good.. webfooted.net/keywordstats.php
Though Overture is not yet updated, i'm still using it to check other KW alternatives and suggestions..