The following list of books I have read and found informational and inspirational. They span a broad range of subjects, but offer something for everyone. Should you find yourself without something to read I highly reccomend these.
Design for Community
Derek Powazek
Toyota Production System
Beyond Large-Scale Production
Taiichi Ohno
Play Money
Or, How I Quit My Day Job and Made Millions Trading Virtual Loot
Julian Dibbell
Linked
How Everything Is Connected to Everything Else
Albert-Laszlo Barabasi
Small Pieces Loosely Joined
A Unified Theory Of The Web
David Weinberger
The Virtual Community
Homesteading on the Electronic Frontier
Howard Rheingold
The Cluetrain Manifesto
The End of Business as Usual
Rick Levine, Christopher Locke, Doc Searls, David Weinberger
SQL and Relational Theory
How to Write Accurate SQL Code
C.J. Date
SQL Antipatterns
Avoiding the Pitfalls of Database Programming
Bill Karwin