The novelettes most likely to have been nominated for the 2014 Hugos in a non-puppy year (based on final nominating statistics) are all available online.  The Crosshill, Emrys and Wilson were on the Locus recommended list, and beat out better known authors who mostly were published in print magazines or anthologies.  The Crosshill story is in Horton’s best of the  year collection, and Wilson’s story made Strahan’s best-of collection.  Dozois didn’t include any of these.

Best Novelette

The Magician and Laplace’s Demon by Tom Crosshill (Clarkesworld 12/14)
The Litany of Earth by Ruthanna Emrys (Tor.com 5/14/14)
The Day the World Turned Upside Down by Thomas Olde Heuvelt (Lightspeed Magazine, Apr 2014)
Each to Each by Seanan McGuire (Lightspeed Magazine, June 2014)
The Devil in America by Kai Ashante Wilson (Tor.com 4/2/14)