http://images.google.co.uk/images?s...&rls=GGLG,GGLG:2006-01,GGLG:en&q=crop+circles In that search click the picture from "www.ukcropcircles.co.uk"? (It's the 7th picture for me...) Why the hell does it redirect to some foreign site? How have they hijacked the results? What can one do to combat this?
Nah, not a hijack as such - I get this a lot - rather than hotlink your image, they've just linked to it as text link to your original image file. As the link is on their site in content, I think Google assumes the image is theirs so it links to their site rather than yours.