Useful links:

Associations:
Mid-America (Illinois)  http://midamericahorseshow.org
IASPHA (Illinois)  http://www.iaspha.com
IHSA (Iowa)  http://www.iowahorseshowsassociation.com
ASAW (Wisconsin)  http://www.asaw.org
USEF (National)  https://www.usef.org
MSHA (Minnesota)  http://msha.org
ASHA (National)  http://www.asha.net
UPHA (National)  http://www.uphaonline.com

Magazines:
Saddle Horse Report  http://www.saddlehorsereport.com
Saddle and Bridle  https://www.saddleandbridle.com
National Horseman http://www.nationalhorseman.com

Clothing, Tack:
P & S Enterprises  http://www.pands.net
Hartmeyer  http://stores.hartmeyer.com
Commotion http://www.shopcommotion.com
Show Season  http://www.showseason.com
Becker Brothers  http://beckerbrothersllc.com
Midwest  http://www.midwestsaddleseatconsignment.com
Scintilla  http://www.scintillaequestrian.com
World Champion  http://www.ehorseequipment.com
Show Horse Tack  http://www.4showhorsetack.com

Photographers:
Terry Young  http://www.terryyoungphoto.com
Courtney Church  http://www.courtneychurchphotography.com
Shane Shiflet  http://www.shaneshiflet.com
Conrad Flemming  http://cfphotos.instaproofs.com
Tod Macklin  http://macklinphoto.com
Rick Osteen  http://rickosteen.com
Jane and Brooke Jacobs  http://janejacobsphotography.com