There is a decent section in The German Shepherd Today, by Winifred Strickland and Jimmy Moses. I don't know that it is on-line, that is in electronic format, but you could probably find it on Amazon.com. Read the whole book, not just the breeding section though.
Heidi Ho, Odie
Joy-Joy, Bear Cub, Hepsi-Pepsi
Cujo2, Karma Chameleon
Ramona the Pest, Kojak -- who loves you baby?
Tiny Tinnie, Susie's Uzzi, Kaiah -- The Baby Monster.