Hi Ruth, exactly the answer I was looking for, thank you. Great article by the way, we had already implemented a lot of what you covered there.
I guess my only problem would be finding unique content for localised landing pages. Breed specific landing pages (eg 'cocker spaniels for sale') will be fine as I can feature breed descriptions on these and the latest listings. But a little more difficult for the page 'puppies for sale in London' for example. Maybe I could feature some breeder profiles for that area.
Would you also recommend putting a no follow on the search results if we put these landing pages in?