Friends group specific resources
“Combatting the Same Six Syndrome,” SOLV.
"Episodic Volunteers vs. Key Volunteers," SOLV.
Hands On Greater Portland
“The Core Group” National Wildlife Refuge Association
General Community Organizing & Recruitment Resources
Community Tool Box, especially Chp. 14: Core Functions in Leadership, Section 5: Building and Sustaining Commitment
Michael J Brown: "How to Recruit People to Your Organization," Cambridge, MA, 1994
Kretzmann, John P. and John L. McKnight: "Building Communities from the Inside Out: A Path Toward Finding and Mobilizing a Community's Assets"