I just learned of one in GA yesterday. Doraville, GA has a large Korean community and I was excited to visit yesterday. I went to the Atlanta Korean Speakers Meetup at a cafe called Maum in Doraville, Ga. It was so fun and I got to impress the group with the bit of Korean I have learned so far here on KoreanClass101.com.
I blog my progress at http://notkoreabutitshome.blogspot.com
I would love to learn more about your communities and if you have study groups as well! Please share here or on my blog! =)