Metro Parks
- Manages and operates 14 parks, comprising over 20,000 acres throughout seven Central Ohio counties. Includes list of park locations, activities and employment opportunities.
- http://www.metroparks.net/

Central Ohio Kennel Club
- A nonprofit organization that furthers the advancement pure-bred dogs, and conducts dog shows, obedience trials, and sanctioned matches. Includes meeting and event schedule, links to breeders and rescue sites.
- http://www.ohiodogs.com/

Central Ohio Fishing Club
- Includes messages, photos and fishing report.
- http://groups.yahoo.com/group/centralohiofishingclub/

Central Ohio Saturn CarClub
- Presents event schedule, meeting details, and member benefits.
- http://www.centohiocarclub.com/

Central Ohio Antique Tractor Pullers Association
- Tractor club providing rules and schedule of events.
- http://www.coatpa.com/

Central Ohio Basketball Officials Association
- Provides meeting schedule, membership listing, officers, association links and school listings.
- http://www.coboa.com/

Central Ohio Football Officials Association
- Provides meeting dates, roster, rules, and news.
- http://www.cofoa.com/

Golf in Mid Ohio
- Internet directory of more than 250 golf facilities. The directory includes golf courses, practice ranges, clubmakers, and retailers within 50 miles of Columbus.
- http://www.golfmidohio.com