When I saw this topic I immediately thought of Babylon 5 and data crystals!!!
But more seriously, the next thing I thought of was Crystal Skulls (there have been a couple of threads already but haven't gone very far). Starting
off with a documentary I went off to read Mystery of the Crystal Skulls:
A great book which carried on from where the documentary finished. It''s quite interesting and well put together.
Basically, these skulls have apparently been 'programmed' with a lot of information and it's even suggested that the spirit of the owners of the
skulls live in them.