City of Colo
- Official municipal web site. Contains information about events and attractions. With photographs and area map.
- http://showcase.netins.net/web/colo-iowa/colomain.html

Colo Telephone Company
- Details of phone services and plans, Internet access, and digital TV. Also provides company history and newsletters.
- http://www.colotel.org/

Twin Anchors Campground
- Offering RV sites with hookups, tent area, swimming, fishing, playground and petting zoo. Includes information about amenities, layout map, rates, rules and regulations, activities and reservation form.
- http://www.twinanchorscampground.com/

Wikipedia: Colo, Iowa
- Encyclopedia article features geography and demographics of this city in Story County.
- http://en.wikipedia.org/wiki/Colo,_Iowa

Celebration Signs
- Offers personalized lawn announcement rentals, featuring newborn, birthday and other occasion signs. Includes catalog of designs, FAQs, prices, rental and contact information.
- http://showcase.netins.net/web/celebrationsigns/