If a subject is important enough to call a meeting, be considerate of the participants time and ensure that it is well prepared.

Communicate beforehand-

Often overlooked- be sure to THANK meeting members for their time and participation, and demonstrate (in the minutes or written record, at least) how their contributions helped meet the objective of the meeting. Participants are frequently left wondering if they've been heard or if their attendance and contributions were noticed. Distribute minutes or some written record (no matter how simple the meeting) to all attendees and absentees, with concise but complete descriptions of decisions made and including action items.

Never assign an action item to a person who is not present to negotiate it, unless you absolutely have to. Note in the minutes that the person hasn’t been notified, and will be contacted for a final disposition of the item.

(Business Etiquette refference)