How do I find out how much my competitors are bidding per keyword?

Is there an inexpensive tool or service out there that I can find out what each of my competitors are bidding/paying per keyword? Thanks

 

With adwords you cant. Because the price depends on the qualityfactor adwords is putting to the competitors site. So one can pay 10 times that much as another to gain the same position for the ad.

Greetings!
Sebastian

 

You can use Spy Fu.