I have just came across with a golf video site that I would call it as GolfTube (the real name is Click on Golf. Unlike IMG Media's Golfing World, this portal is aggregating contents from all around the world from content producers. So if you are fed up with subscribing to different brand channels on YouTube (e.g. Golf Channel, PGA Tour, Titleist, Nike Golf, Mizuno Golf etc.), it is a great choice, since everything is in one place.
The portal is still in beta version, so let's forgive them for their mistakes, such as missing advertising solutions. Currently I found ads among the videos.