Here's a list of this year's five Hugo nominees for best short story, with links to the stories.
"Movement", Nancy Fulda (Asimov’s 3/11)
(This story was featured in an earlier post, Aaron's recommendation of "Movement", and was one of Aaron's Hugo nomination picks)
"The Paper Menagerie", Ken Liu (F&SF 3-4/11)
"The Homecoming", Mike Resnick (Asimov’s 4-5/11)
"Shadow War of the Night Dragons, Book One: The Dead City (Prologue)", John Scalzi (Tor.com 4/1/11)
"The Cartographer Wasps and the Anarchist Bees", E. Lily Yu (Clarkesworld, April 2011)