Pete Ramey's website has lots of free informative articles that have been published in magazines in the past. And if you like to spend money, he sells great books and videos.
Link: Pete Ramey Hoof Rehab home. Horse hoof maintenance and care.
Gene Ovnicek is the founder behind Equine Lameness Prevention Organization. The E.L.P.O. website also has lots free information about the care of the equine foot. Link:Home
Gene has also made several very good videos that are on YouTube. Searching under either Gene Ovnicek or Hoofcare Today will bring up most if not all of his videos.
Gene also has videos for sale at Link: Natural Balance Hoof Care Ultimate Education Pack
These two guys are the most quoted people by the more knowledgeable hoof care practitioners. The American Farrier Association even references Gene Ovnicek.
Pete Ramey is a 100% barefoot person where Gene Ovnicek acknowledges that in the real world, there are situations where shoes are needed. So they diverge a little on that point.
If you learn a fraction of what these two guys know, you will be very knowledgeable on hoof care. That said, there is some things that, for me, just didn't quite sink in all the way until I actually faced them with my hands, eyes, and a horse.
I started the pilgrimage you speak of about two years ago and feel I have only just begun.