Okoboji Protective Association  www.okobojiprotectiveassociation.org
Water Safety Council Link page  www.watersafetycouncil.org
Clean Water Alliance  www.cleanwateralliance.net
Iowa Lakeside Lab  www.lakesidelab.org
Keep Okoboji Blue  www.keepokobojiblue.com
Protect Your Waters  www.protectyourwaters.net
Spirit Lake Protective Association  www.theslpa.org
East Okoboji Lakes Improvement Corporation – http://www.eastokobojilakes.org