Monticello Rotary Club
- The Monticello chapter of the Rotary Club.
- http://monticello.rotary6490.org/

Monticello Lions Club
- Provides details for Annual Sangamon River Valley Bike Ride, including contact information, and a photo gallery from previous years' rides.
- http://www.monticellolions.org/

Monticello Illinois
- Features city information, news, events, and business and directory listings.
- http://www.monticelloillinois.com/

Monticello E-news
- Online newspaper offering local news, business news, police blotter, recreation, council corner, mosquito bytes, elected officials, calendar of events, and archived editions.
- http://www.monticelloenews.com/

First Christian Church
- Provides details about the congregation such as staff biographies, worship schedule, event calendar, and ministry information.
- http://www.fccmonticello.org/

Monticello Tourism
- Offers visitor information about places to go, regular and seasonal events, parks and recreation, Agri-Tours, weekend packages, and an area map.
- http://www.monticellotourism.org

City of Monticello
- Provides information about emergency services, parks and recreation, economic development, housing and real estate, city officials, building and zoning, city services, public works, and commercial properties.
- http://www.cityofmonticello.net

Monticello Main Street
- Nonprofit organization dedicated to preserving the identity, social character, and heritage of the downtown area. Sponsors events and activity throughout the year. Recognized as an Illinois Main Street Community, and designated a National Main Street comm
- http://www.monticellomainstreet.org

Monticello Chamber of Commerce
- A membership-driven organization representing and promoting the business community. Provides a searchable database of area businesses, membership information, and events calendar.
- http://www.monticellochamber.org

John and Mary E. Kirby Hospital
- Describes history, medical services, and community activities.
- http://www.kirbyhospital.org/