We met up in downtown SOHO, but every meet-up I think is in different places in NYC because it is the NYC yorkie meet-up. We also meet once a month. You have to join the group in order to meet up so you can go to meetup.com and there are tons of groups. But this one is called the NYC yorkie power playgroup. It's free to join.

Here's the link incase:
http://yorkie.meetup.com/1/?gj=sj5