Isaac Asimov: Nightfall

Isaac Asimov: The Last Question

Paolo Bacigalupi: The People of Sand and Slag
Notes: 
Neal Barrett, Jr.: Perpetuity Blues

Stephen Baxter: The Gravity Mine

Terry Bisson: England Underway

Kent Brewster: In the Pound, Near Breaktime

David Brin: The Giving Plague

Ted Chiang: Division by Zero

Ted Chiang: The Merchant and the Alchemist's Gate
Notes: 
Ted Chiang: Understand

Tony Daniel: Life on the Moon

Jack Dann: Da Vinci Rising
Colin P. Davies: Tall Tales on the Iron Horse

Andy Duncan: Fortitude
Greg Egan: Oracle
Notes: 

Greg Egan: The Planck Dive

Jeffrey Ford: The Empire of Ice Cream (SciFiction, February 2003)
Notes: 

Karen Joy Fowler: Standing Room Only

Neil Gaiman: How to Talk to Girls at Parties

James Alan Gardner: The Ray-Gun: A Love Story
Notes: 

Tom Godwin: The Cold Equations

Dominic Green: The Clockwork Atom Bomb
Notes: 

Daryl Gregory: Second Person, Present Tense
Notes: 

Joe Haldeman: None So Blind

Robert A. Heinlein: The Menace from Earth

Kij Johnson: 26 Monkeys, Also the Abyss
Notes: 

Kelly Link: Carnation, Lily, Lily, Rose (Fence, 1998)

Kelly Link: Flying Lessons (Asimov's, October 1996)

Kelly Link: Most of My Friends Are Two-Thirds Water

Kelly Link: The Faery Handbag

Kelly Link: The Specialist's Hat (Event Horizon, November 1998)

Kelly Link: Travels with the Snow Queen (LCRW #1, 1996)

Daniel Pearlman: The Heart of the Overchild
Kim Stanley Robinson: A History of the Twentieth Century, with Illustrations

Benjamin Rosenbaum: Biographical Notes <...>

Benjamin Rosenbaum: Start the Clock
Notes: 

Eric Frank Russell: And Then There Were None

Carter Scholz: Bad Pennies
Notes: 
Bob Shaw: Light of Other Days
Lucius Shepard: Radiant Green Star

Lucius Shepard: The Jaguar Hunter

William Shunn: The Practical Ramifications of Interstellar Packet Loss
Cordwainer Smith: The Game of Rat and Dragon
Greg van Eekhout: In the Late December

Ray Vukcevich: Whisper
Notes: 

Richard Wadholm: From Here You Can See the Sunquists
Notes: 
Peter Watts: Blindsight

Connie Willis: Fire Watch

George Zebrowski: The Word Sweep