Meetup is the world's largest network of local groups. Meetup makes it easy for anyone to organize a local group or find one of the thousands already meeting up face-to-face. More than 9,000 groups get together in local communities each day, each one with the goal of improving themselves or their communities.
Federally-Compatible TOS (link)
Privacy Threshold Analysis (PTA)
Privacy Impact Assessment (PIA)
System of Records Notice (SORN)
FedRAMP (CSP Package)