Lake County Haven, The
- A social service agency dedicated to meeting the needs of homeless women and children within the county. Includes details of its transitional housing, education, employment, and life-skills training services, and mailing list.
- http://www.lakecountyhaven.org/

Lake Forest - Lake Bluff Historical Society
- Provides information on its collections, publications, history, records, and contact details. Membership information and pricing, special exhibits, and contact details are provided. Based in Lake Forest.
- http://www.lflbhistory.org/

Compassionate Friends, The
- Local chapter of this national network that assists families toward the positive resolution of grief following the death of a child of any age and provides information to help others be supportive.
- http://www.iltcf.org/

Lake County, Illinois Genealogical Society
- Formed in May of 1978 by the Genealogy Group of the Libertyville-Mundelein Historical Society. Based in Libertyville.
- http://www.rootsweb.com/~illcgs/

United Way of Lake County
- The local branch of the national organization. The United Way works within communities to identify needs and then coordinates volunteers, service groups and local businesses to help fulfill these needs.
- http://www.uwlakeco.org/

ILGenWeb: Lake County
- A central location for genealogical information involving Lake County. Part of the ILGenWeb Project, which is part of the USGenWeb Project.
- http://www.rootsweb.com/~illake/index.htm