The development of ebooks has led to the net book agreement (NBA) making a comeback in electronic form. According to Sam Jordison, this is A Good Thing:

Losing the net book agreement [in 1997] did not lead to greater variety, customer choice, a better deal for producers or for shops (as those on the right claim unfettered competition should). It led to a three-way carve up of the trade between Waterstones, supermarkets and Amazon. Hundreds of viable publishers servicing thousands of shops were swapped for just over a dozen bloated giants with only a small number of effective outlet options.