This link http://www.kaylenbergsiberians.com/BreedersOnline.htm was posted on another thread and I think should be sat at the top of this thread.

It is American so where they mention OFA CERF, for UK sites you would expect to see mention of BVA?KC health schemes, hip/elbow scoring, Eye testing and also breed club health schemes such as Hear t List for Boxers etc.

For UK breeders the only legitimate Registration body is the Kennel club, the others are the mentioned purely for profit organisations to add seeming legitimacy to poorly bred or unregisterable litters.

Another one here on clasified ads,again American but most of the same terminology is used..

http://www.canismajor.com/dog/clasfied.html

And this one is all the excuses BYB's use for their breeding practices..

http://www.heroswaggintrain.com/bybreed_pm_book.htm