Free Speculative Fiction Online 
(Strange Horizons, January 2004). A sample from this collection.
(Analog, December 2004)
Isfdb:
(Nature #442, August 2006)
.
(The Future We Wish We Had Anthology, 2007)
(Nature #450, November 2007).
(Nature #457, February 2009).
. Isfdb:
(Daybreak Magazine, February 2010). A sample from this collection.
(Analog, April 2010) Isfdb:
(Nature #465, May 2010)
(Clarkesworld #45, June 2010)
Isfdb:
(Nature #480, December 2011)
(Overview: Stories in the Stratosphere Anthology, 2017)
.
(Clarkesworld, October 2020)
(Clarkesworld #181, October 2021) Isfdb:
(Slate, May 2022)