Any way to know your competitor keywords ?

Hi ,
Is there a way I can find what keywords a competitor is using ? like extracting keywords from an adwords campaign ?
Thanks

 

keywordspy.com is one, i know there are several others, most offer a trial but cost if you want the full version,

you can always find out the long way ie punching in words and seeing if an ad triggers!!

 

you can try spyfu.com but keywordspy is pretty good as well

 

Thanks ,
Rep added for both

 

I haven't used it yet, but I was recommended to use http://www.keycompete.com

I hope it helps. good luck.