What do I need to know about adopting a yorkie terrier?

Yorkies are yippers. If you have children, or easily annoyed members of your family, this could be a problem.

They also can have health issues. They easily get infections too.

They are sweet though, and good pups. Good Luck!
References :

Take a look at this site: http://www.akc.org/breeds/yorkshire_terrier/
References :

hi,

Small in size but big in personality, the Yorkshire Terrier makes a feisty but loving companion. The most popular toy breed in the U.S., the "Yorkie" has won many fans with his devotion to his owners, his elegant looks, and his suitability to apartment living.
here's more info:
http://dogtime.com/yorkshire-terrier.html

hope this helps.
References :

Ok I just got a puppy yorkie and I will tell you that they are hilarious! They are so cute but there are some things you should know. In bad weather such as rain (i don't live in/by snow so i wouldn't know) they refuse to get wet or go outside which means they "tee tee" in the house and possibly poop if they have to go whether they are trained or not. Also, one minute he can be lying down sleeping and the next he could disappear into doing something he shouldn't. When it's quiet know that he is getting into something. if getting a girl get spayed right away for they start ministration early. I recommend not leaving him alone and get a dog sitter or the dog will get very upset. Remember it is a lap dog. Don't get mad if he bites for it is the way they show affection. I have to go but these are the main things you need to know.
References :
My own dog

Alright heres my little trooper:
http://i316.photobucket.com/albums/mm337/DivineIndian/TheGoodPic-1.jpg
And dont let the looks fool you he is one mischievous dog.
But then again i love him and wouldnt give him up for anything.
In my opinion he trained pretty easy and even with the few accidents he has, he tries to keep it to a bare minimum. He used to bark for any sound he heard. Nowadays he only barks at people. I remember always being scared he wouldnt eat much. yorkies do that. They scare you. And he still nibs me and makes me mad but i forgive him and think he is a great dog. Good luck with yours and hope for all the best!!
References :
my dog