nethead

noun2

1. •
   (slang) An obsessive Internet user.

   • This is, after all, a gathering of a typical fraternity of netheads, those Internet-obsessed students who every night fill the large computer labs sprinkled throughout campus. — 1998
2. •
   (slang) A supporter of the Internet and its flexibility and technical underpinnings, contrasted with Bellhead (a supporter of traditional centralized telecommunications networks).