This site talks about the sheltie breed as a whole and choosing a breeder (the sheltie's general personality traits, Choosing the RIGHT breeder - what to ask, what to get, and a contract, etc.)
This site talks about the general care and upkeep a sheltie needs (Crate training, grooming, feeding, Veterinary care needed, "Those Darn Ears!", etc)
This site talks about breeding dogs - do you have a dog that is an excellent specimen? If so, these are things to think about before, during, and after the mating process. Presented for both male and female owners.
This site talks about the best way to find your lost sheltie, should that ever happen to you.