Central Illinois Radio Club (CIRC)
- Not-for-profit ARRL special service club whose purpose is to advance the service of amateur radio.
- http://www.qsl.net/w9aml/

Upper Limits
- Rock climbing gym. Boasts 20,000 square feet of climbing areas including 110 foot vertical outdoor routes and a multi-level bouldering cave.
- http://www.upperlimits.com/

Palmer's Gymnastics, Inc.
- General information, programs, staff, birthday parties, news and events.
- http://www.palmersports.com/

Gymnastics Etc.
- Instruction facility that features a team area, staff biographies, classes, contact information and map.
- http://www.gymetc.com/

Midwest Diving Specialists
- 5-Star PADI Scuba Diving facility that sells and services scuba equipment, provides scuba education and hosts scuba travel. Descriptions of scuba educational programs, and has Real Audio/Video of foreign dive travel and underwater video.
- http://www.mds-scuba.com