This year's Hugo Award nominees for Best Short Story:
"Seventy-Five Years", Michael A. Burstein (Analog Jan/Feb 2005)
"The Clockwork Atom Bomb", Dominic Green (Interzone May/Jun 2005)
"Singing My Sister Down", Margo Lanagan (Black Juice, Allen & Unwin; Eos)
"Tk'tk'tk", David D. Levine (Asimov's Mar 2005)
"Down Memory Lane", Mike Resnick (Asimov's Apr/May 2005)
For the Hugos Awards, written fiction is divided by length into four categories. Short Story is the shortest length category, 7,500 words and under.
The L.A.CON IV website has a list of all the 2006 Hugo Nominees including many links to stories and authors.