Ray Winninger's UNDERGROUND
Published in 1993, this book predates the internet, but sees the future is in computers, computer technology, and apes many of the common tropes of the cyberpunk genre but hearkens to the Vietnam era, leading to the Supersoldiers coming home to a hostile reception, endemic crime, poverty, and violence. It does make so social statements, some of which 21 years down the road have come frighteningly true (Corporations being declared to have the same rights as a citizen is just a step along the way to sovereign corporations) while others comically have not, such as the $5000 shoulder mounted fax machine.
Some highlights, or frightening points
Tastee Ghoul and Sweeney's: cannibalism isn't just legal, it's now one of the highest grossing (in more than one way) restaurant franchise in America. Tastee Ghoul is fast food cannibal, while Sweeney's is more of a TGIFridays upscale pub. People can sell their bodies to the food companies to be turned into food for the masses, generally at about $750 for an adult male.
Pre-Frontals: genengineered humans with 45 chromosomes, reduced mental capacity, bred to be menial laborers addicted to junk food made by the corps that funded their development. Also, lacking rights, they are frequently abused, murdered, and put on the menu. Derogatory called cro-mags, cros, slopes, etc
Artificial Brains: Tired of being angry and broke? Sell your brain. Your mind and memories are downloaded into an artificial brain which is put into your head. You are dumber, but now predisposed to be happy and industrious, plus the money you make from selling your original brain more than covers the cost of the replacement and puts money in your pocket. Two birds with one something or other.
Braindrives: harvested brains are turned into biostorage systems for computers.
Brain Theft: some enterprising individuals take to killing people to steal their brains to sell to the companies that make the brain drives.
Animal Brains: There are friendly autonomous robots all over the place, eager to please and to help. Because sitting in the head of these robots is the brain harvested from intelligent animals, modified, programmed, and wired into the system. Fido never has to die, after he kicks the bucket, his brain can be used to make you a menial robot servant.
There is also a three tier trauma system based around the mental instability that comes from extensive genetic modification, cybernetic grafting, PTSD and the overall horror of life in 2021