Free Speculative Fiction Online 
(Tor.com, September 2013)
Isfdb: 
(Asimov's, June 2001)
.
Isfdb:
(Asimov's, June 2002). Isfdb:
(Asimov's, April 2003). Isfdb:
(Asimov's, September 2004). Isfdb:
(Tor.com, December 2009)
(Interzone #22, Winter 1987)
(Interzone #39, September 1989)
(Interzone #37, July 1990). Alternate link.
Simon Ings: Something Sweet (New Worlds Anthology #1, 1991)
(The Weerde 1 Anthology, 1991)
(There Won't Be War Anthology, 1992)
(Villains Anthology, 1992)
Simon Ings: Tolkowsky’s Cut (New Worlds Anthology #3, 1993)
(The Weerde 2 Anthology, 1993)
(Interzone #97, July 1995). Alternate link.
(Interzone #105, March 1996). Alternate link.
(Odyssey #3, 1998)
(Odyssey, 1998). Alternate link.
(Interzone, August 1998).
(Spectrum SF #1, January 2000).
(Interzone #157, July 2000). Alternate link. Isfdb:
(Spectrum SF #3, July 2000). Alternate link.
(Asimov's, October 2001). Isfdb:
(Toast Collection, 2002).
(Asimov's, February 2002). Isfdb:
(Asimov's, September 2002). Isfdb:
(Live Without a Net Anthology, 2003)
. Alternate link.
(Asimov's, December 2003). Isfdb:
(Asimov's, December 2004). Isfdb:
(Nature #436, August 2005)
(Jim Baen's Universe Vol. 1 No. 1, June 2006). Also available on a freely distributable CD. Isfdb:
(Tor.com, August 2008).
Cory Doctorow: The Rapture of the Nerds (Tor, 2012)
(Tor.com, July 2012) Isfdb: