Eric Knapp is in charge of scheduling meetings, booking the rooms, and generally making sure meetings happen smoothly. You should contact him if you’d like to speak at the Madison Rails group or have questions about sponsorship, conferences, etc.
Rob Sanheim is the admin of this slightly hacked version of i2, and I try to help out with the group as I can. If things are breaking of you have technical issues with the wiki, you can also contact Rob.