Thanks for the link, I'll have to check them out.
Also, check out
http://yorkie.meetup.com/307/
It's a lot of fun. There are "meet ups" about once a month at local dog parks.
If you live in Houston and are interested in going to Memorial Park, drop me a not. Sato and I go about 3 times a week. Sato loves getting outside and going for a nice long walk.