Chapter is an open source meetup platform being developed by the people at FreeCodeCamp. They were frustrated with Meetup (aren't we all) and wanted to build an alternative to serve their needs.
I know this isn't specifically a Commsor forum but in my research it's headed in the right direction VS other community management platforms.
If everyone here is a community professional we'll all be better served by making Chapter a reality. Who wants to join me in making some pull requests and getting this platform out the door?