SpyFu is a beta service for finding out what your competitors are paying for keywords.
Arizona-based Spyfoo feeds a list of keyword searches to Google and tracks the ads, ad placement, and organic search results returned for each. Then you can go in and search on your competitor and see what they are buying.
During the beta the data is pretty stale but should get more up to date when the beta tag is removed.
Check out the results for phrase dating.
Via alarm:clock.
