Free Keyword analisys

first, check your selected term in :
http://www.digitalpoint.com/tools/suggestion/

then, check your adsense sandbox, to see there is a lot of ads will show up:
http://www.digitalpoint.com/tools/adsense-sandbox/

check the bids of your term in:
http://uv.bidtool.overture.com/d/search/tools/bidtool/

also count for all suggested search term in overture :
http://inventory.overture.com/d/searchinventory/suggestion/

last step is, put the variable that is needed by the tool to analyzed:
http://www.seomoz.org/tools/kwtool.php?a=run

wait, and see the result!