A Fire Upon the Deep by Victor Vinge. This novel was the first great epic of the internet age, leapfrogging over cyberpunk and into a posthuman future where UNIX is thousands of years old and newsgroups span the galaxy. A powerful computer virus that transforms matter is attacking civilization, and our only hope may lie with two kids marooned on a medieval planet full of dog-like creatures with collective consciousness.
Vernor Vinge - A Fire Upon the Deep (1992) A human research team uses an old library to create a network and releases an evil power that can destroy the galaxy. After study to become a librarian at the University of Sjandra, Ravna wins a three year workstudy 20,000 light years away at the Relay archive, the network/archives hub of a million worlds.