A WebmasterWorld user wonders if KeywordSpy is a threat to advertisers. Basically, the premise of the site is simple: you enter a keyword or domain and see your competitors' keywords. The advertiser tried it against his domain and saw that it was pretty accurate. Naturally, that has caused a bit of worry for him.
But many other users tried it for other campaigns and it doesn't seem to be accurate. For example, an advertiser who sells lights was told by KeywordSpy that he was bidding on solar aquariums.
Another member puts it quite simply:
We're not bidding on about half of the keywords it brought up for our domain.
I tried it for a campaign I am working on and I agree that it's bringing up irrelevant keywords.
What are your thoughts of the service?
Forum discussion at WebmasterWorld.