Wikipedia: Quad Cities
- Encyclopedia article features group of cities which flank the Mississippi River in Iowa and Illinois. Covers history, geography, landmarks, media and area activities.
- http://en.wikipedia.org/wiki/Quad_Cities

Xquisite Limo, LLC
- Providing limousine and party bus service to the Cedar Rapids, Iowa City, Waterloo and surrounding areas. Includes fleet details and photos.
- http://www.xquisitelimo.com/

Cedar Rapids and Iowa City Railway Co.
- Operates over 100 miles of track in ten communities in four counties. Includes history, facts and figures about the line, services, FAQs, crew list, online store and resource links. Located in Cedar Rapids.
- http://www.crandic.com/

Quad City Montessori School
- Providing learning experiences for children from 2-12 years of age. Includes information about programs, admissions, announcements, athletics, calendar, and the PTU. Located in Davenport.
- http://www.qcms.org/

QCTimes.com - The Quad-City Times Newspaper
- Find Iowa and Illinois breaking news, sports, features, business, opinions, multimedia, jobs, and classifieds.
- http://www.qctimes.com/

East Central Intergovernmental Association
- Membership supported organization of local governmental bodies providing services in Cedar, Clinton, Delaware, Dubuque and Jackson Counties. Contains agendas and minutes, calendar and list of publications.
- http://www.ecia.org/