Many of my fellow equestrian photographers have been in discussion lately about the rights awarded to the official photographer at a competition, credentialed media photographers, how to deal with poachers, copyright infringers...basically all things business.
While I made rookie mistakes at the beginning, once I became a member of the professional ranks I have always done my best to respect the official photographer(s). Digital has made it very easy for anyone with a camera to set up a website and sell prints.
I walk both sides of the line, I have shows where I am there to sell to the participants, and I have many others that I cover as a working member of the media.
My distinctions between my stock and my participant photos are 1. the location were they are hosted, 2. the access, 3. consumer product prices are only listed on images for sale from event where I am asked to be there.
While I am there to cover the competition with the "standard" shots I am also there to add to my stock database. All my images will go into my stock galleries (which are password protected, and access is limited to editors and ad agencies).
Here is a sample of what I am shooting in addition to the "knees to the nose" frames.