Here are a few good links from the horse blogging world.
7 Tips For Being a Better Competitor Among Friends from Zen and the Art of Baby Horse Management
I love this. I'm somewhat competitive, and I often ride among friends, but all these tips apply to anyone who's showing - they'll help you be a better competitor and person.
Thermal Imaging from The Adventures of a Floppy Ammy
I loved seeing the pre and post saddle reflocking images - such a great argument for reflocking regularly, even if your saddle fits on paper.
What to Consider Before Using Alternative Therapies on Your Horse from Racing to Ride
Thoughtful, clear, and transparent post about things to think about when you're going beyond standard vet care. I myself use massage for Tristan regularly, and would consider chiropractic. It's important to note here that by "alternative therapies" Jodi means more things like that and not, say, Chinese herbs or homeopathy.
A Hard Diagnosis to Take from Paradigm Farms
Again! Thoughtful, clear, and transparent writing about how sometimes the best thing you can do for your horse is absolutely nothing. I tend to be guilty of the "TRY EVERYTHING!" approach to Tristan; in the last few months I've made conscious decisions to let him resolve some problems on his own, both for my mental health and for my bank account.
Flying Changes from Forging Fiction
Truly outstanding lesson write-up with diagrams and thoughtful analysis and clearly described exercises.