Prrometheus

No hacker site would be complete without mention of Cryptonomicon.

pick up a copy of Taleb's "Fooled By Randomness"

"The Fountainhead" - gave me the gift of self-confidence

"Augustus" is by Anthony Everett

"The Ancestor's Tale: A Pilgrimage to the Dawn of Evolution" - helps me understand where I come from and where I fit in the Biosphere

"The Use of Knowledge in Society" - This, along with other pieces on economics and capitalist anarchism, gave me an appreciation for distributed non-hierarchical systems.