Resimulation

noun
A reconstruction of a deceased person of historic note, created from their corpus of documented works.
Origin
Coined with allusion to reincarnation.
Source
Accelerando

Fakebook

noun
A written document stored in electronic form.
Source
Light

Databall

noun
An encapsulated message sent over a digital communications network.
Source
The Girl Who Was Plugged In

Cryptosphere

noun proper
A networked worldwide data repository, containing the sum of recorded knowledge and populated by uploaded human minds.
Origin
Crypta (vault), from kruptós (hidden).
Source
Feersum Endjinn