SW Neighborhoods, Inc. Empowering Citizens since 1978

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"