Chris from STL Poly Community was kind enough to send an email and follow up with me after my reading, and now here is the revised, updated list of polyamory resources in St. Louis and Missouri:
Bi State Poly List (Yahoo Group)
St. Louis Poly Community (Yahoo Group)
note: this a restricted-access group, but anyone who mentions coming from openingup.net will be granted
St. Louis Regional Polyamory (SLURP)
These three groups also meet together offline/in real life: there is a Poly Munch the 2nd Saturday of each month from 2:00-4:00 pm at Cici’s Pizza, 9745 Manchester Avenue.
PoDGE St. Louis meets the 3rd Tuesday of each month and the location varies. However, the next meeting is Tuesday, June 24 at 7:30 pm at Gelateria del Leone, 3197 South Grand Avenue.
CoMo Poly Yahoo Group (Columbia, MO)
St. Louis Polyamory on LiveJournal