I often draw on these for accurate representation of the universe and aside from that they're just fun to read and reading is fun. Check them out and if you enjoy it maybe buy a copy they're only a couple bucks used. These PDFs are all sourced from the internet and were free. They weren't obtained from any shady gizmo or gadget. Now you too can have answers to your burning questions like:
What sort of hat does John Connor wear?
How do HK Aerials think?
and . . .
What does Kyle Reese think about snickers chocolate bars?
Slightly unrelated to the actual movie novelizations, but this novel series gets a little weird at times, but it presents a whole different timeline that could have been. Favorite thing to come out of it was the T-101 concept, which is just a terminator mass-produced from random scrap steel, loaded up with the dumbest possible AI, and just sent out in mass waves.
Also the slightly strange but entertaining notion that Skynet hijacks any car with a computer and uses them to fence people in ahead of the bombs.