I love the Whole Dog Journal and have recommended it time after time. No it is not specifically for Yorkies but dogs in general. With my gang of 10 I am always pulling it out for advise and their recommendations. I think it is more important to have newsletters that can help me raise healthy, well behaved (well we try) dogs. Every year they post their recommendations for the best dry dog food and the best wet dog food from their research - this in itself is worth the subscription. They also do research on new procedures for fighting many diseases our little ones can get along with positive training procedures.
I highly recommend it.
I wish I could help you with the insurance but I don't use it.