Free Speculative Fiction Online 
This list is limited to the Hugo Awards, the Nebula Awards, and the World Fantasy Awards. See here for further awards.
(Tor.com, July 2018)
Isfdb:
(Yog's Notebook, Spring 2007)
(Shiny #2, December 2007)
(Helix #9, Summer 2008).
(Birkensnake #1, 2008).
(Strange Horizons, June 2008). A sample from this collection.
(Beneath Ceaseless Skies #5, December 2008). Alternate link.
(Strange Horizons, March 2009)
(Brain Harvest, June 2009).
(Escape Clause, October 2009)
(Beneath Ceaseless Skies #31, December 2009)
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(Brain Harvest, June 2010)
(Bull Spec #6, Autumn 2011)
(Fantasy Magazine, January 2011) 
Isfdb:
(Daily SF, December 2011)
(Beneath Ceaseless Skies #97, June 2012). Available as part of this magazine. Isfdb:
(Daily SF, June 2012)
Caroline M. Yoachim: Flash Bang Remember (Lightspeed, August 2012). Isfdb:
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(Tor.com, July 2013). Isfdb:
(Daily SF, July 2013)
(Daily SF, February 2014)
(Lightspeed, June 2014) Isfdb:
Caroline M. Yoachim: Coin Flips (Daily SF, February 2015)
(Tor.com, August 2015). Isfdb:
(Gigantic Worlds, September 2015)
(Fireside Magazine, July 2017)
(Daily SF, August 2017)
(F & SF, September 2017) Isfdb:
(Uncanny Magazine #19, November 2017) Isfdb:
(Daily SF, June 2018)
(Uncanny Magazine, March 2019).
(Daily SF, April 2019)
(Daily SF, September 2019)
(Escape Pod SF Anthology, 2020)
(Uncanny Magazine #35, July 2020) Isfdb:
(Daily SF, September 2020)
(Daily SF, October 2020)
(Uncanny Magazine #44, January 2022) Isfdb:
(Beneath Ceaseless Skies #370, December 2022) Isfdb: