On Beersmith podcast. Tons of hop info here. Doesn't make the hop landscape and brewing with them any simpler. He talks dry hopping, oils, whirlpooling and lots of other stuff. I haven't even listened to the whole thing yet. A couple points I thought were interesting though not surprising… hops exposed to boiling for just 10 minutes will lose half of their oil content to volatilization. Also, some large breweries are dry hopping based on weight of total oils and not of weight of the hops as a whole, but few do this because few breweries know the oil content of their hops.
httpss://vimeo.com/131790387