GuideStar:
GuideStar's mission is to revolutionize philanthropy and nonprofit practice by providing information that advances transparency, enables users to make better decisions, and encourages charitable giving.
Illinois Commission on Volunteerism and Community Service:
The Illinois Commission on Volunteerism and Community Service, situated within the Illinois Department of Human Services, Division of Community Health and Prevention, strives to improve communities in Illinois by supporting and enhancing volunteerism and community service.
Energize, Inc::
International consulting, training and publishing firm specializing in volunteer management. Site includes articles on volunteerism and monthly tips.