The Horse Rider’s Journal – It is not a "heavy scientifically" magazine, but it's incredibly beautiful with wonderful pictures and good interviews :)
I like American Farrriers, Barrel Horse News and Western Horseman. I bought recently Spin to win rodeo but I was disappointed
Horse and Dressage Today are my fav :)
I read Horse Illustrator and Young Rider when I was younger. Western horse and gun is also funny!
I like to take a look at Noelle Floyd's website and I like Practical Horseman :)