[motherhen]

It took me until a while into page 3 before I knew what OP meant!
As far as teacup, that's how some people know, kind of, what size you are talking about. Up until the ad that just got done running in our local paper, I always put teacup. For one reason, I too didn't know any better. Most of the time when you see Teacup, you know that it will be small -- so you don't waste a lot of time calling the other ads (if smaller is what you want). Now, I just put, won't be over 4 pounds when full grown.
I love the Yorkie Talk site. When we sell a puppy, I now put one of the Yorkie Talk business cards with the papers, with one of our adult dogs name on it. That way, they too can learn and get educated. Education, and love of the breed is the most important! everything else is just not as important.