[SallyintNorth]

Intelligent Horsemanship have a promotion running.  An opportunity for a non-member to win access to one of the webinars for free.  (Sorry it's running through Facebook, which I know means not everyone will have access to the promotion.)

Linky

My personal favourites are the James Cooling ones on bitting.  He goes into how you have to look at the whole horse and all the tack, you can't just fit a bit in isolation.  I learned *so* much...