Spoke at Manchester Digital yesterday on The Future of Search and saw an interesting presentation on the Semantic Web by Sean Bechofer, an amiable Scottish computer guy from the University of Manchester.
He mentioned Vannevar Bush, a chap I'd never heard of, who in the 1930's came up with the concept of a Memex - "a device in which an individual stores all his books, records, and communications, and which is mechanized so that it may be consulted with exceeding speed and flexibility."
Check out a summary of his essay As We May Think
That'll set you up nicely for any weekend dinner parties!