Is it brainstorming for ideas, sources of money, grants, specialized advice or all of the above. If there are specific questions you would like the board to consider, print a sheet of these and have them presented at the next meeting. What to cover at the second meeting. At the second meeting, follow-up on the information presented at the first meeting. A second brief orientation for any members who may have missed the first session.
Time is of the essence.
This is probably your last chance to get these people together for a while. Most advisory boards are brainstorming sessions. If this is the case there are some rules to keep in mind. Start with a single subject and cover it completely before moving to the next one. Write down all ideas presented without comment.