Thanks so much for the feedback Andy, Andy and Bentley.
I'll split that page into multiple pages. (Not manually... I'll make the site do it for me.)
Great suggested words Andy Brice. Many of these are touched on in the book, I need to go through very carefully looking for 'terms of art'. It's so easy to become blind to the jargon. At the same time I have to avoid any attempt at being comprehensive/encyclopedic. Shipping is a feature.
I wasn't going to mention resellers at all. Y'know from experience I see them as a largely British thing. Other countries have them, but to a much lesser extent (I have no metrics to back me up on this). Are they declining do you think or will they always be with us?