You can learn about the Russian Blues from CFA RB page. CFA also prepared a breed standard presentation for easy comprehension.
This is a site by the collective effort of CFA Russian Blue breeders. It contains photos of past Russian Blue National Winners & Distinguished Merit as well as the lists of Regional Winners & Grand CH/Grand PR. You will also be able to see the the best of the amazing breed.
There is also an detailed response demystifying the anecdote of Russian Blue being "hypoallergenic" - no, they are not hypoallergenic.
We adhere to their position on Russian Blue.
If you have any question about this breed, here is the site to find an answer.