Moderator
The one moderating the meeting
Location/Venue
Combination of physical location, IRC Channel, URL
Start Time
and all associated confusion regarding timezones
Collection of Agenda Items
Thoughts on how to attach multiple Agenda Items to an agenda:
1) Agenda could be a CCK type and Agenda Items could be a fieldgroup
2) Agenda could be a CCK type and Agenda Items could be another CCK type added through Subform
I prefer #2, since it would allow agenda items to be developed on their own before being added to an agenda.