Think of an open social network as similar to a public square. This is a place where everyone—member, non-member, affiliated, unaffiliated—can gather together. In contrast, a private social network—frequently called a “walled garden”—is only made available to authorized individuals. Both types serve beneficial purposes.
This paper focuses on such aspects of Facebook as:

Leadership Development: An Age-Old Challenge with a Modern-Day Twist
Protecting Your Ministry's Traveler's
Why Facebook and Other Social Networks May Not Work for Your Church
Changes in American Megachurches
Advantages of Portable Room Dividers
Vehicle Maintenance Checklist
Preparing for the Unthinkable: Violence in the Church
Making Multisite Mergers Work: New Options for Being One Church in Two or More Locations
Planning for Big Success with Small Groups
MissionInsite Tools Assist Local Church During a Recent Disaster
Taking Your Church Missional: What Does it Cost the Leader?
Planting a New Outreach Ministry
Going Outside the Church Walls
Making Multisite Mergers Work: New Options for Being One Church in Two or More Locations
The Changing Role of Large Church Senior Pastors: Trends and Developments
2010 Large Church Economic Outlook Report: North American Megachurches Are Holding Steady During the "Great Recession"
MissionInsite Tools Assist Local Church During a Recent Disaster
Avoiding the Money Conflict
Missional Households
Church Health Survey Report 2010
Changing Metrics: The Benefits of Measuring Devotion and Obedience, Not Just Numbers
Why Facebook and Other Social Networks May Not Work for Your Church
Breaking Through Growth Barriers In New Churches
Lending Your Church Facilities: Guidelines
Selecting Locations For Additional Campuses