This is very cool. Small Beer Press has announced that what was easily one of my favorite short story collections of recent years, Maureen F. McHugh's Mothers & Other Monsters, is now available for free online under a Creative Commons license. So if you've never read any of McHugh's stories -- Ursula K. Le Guin rightly calls her "one of our best and bravest imaginative writers" -- now is your chance. As SBP notes, "The paper edition is much nicer, although not free."
They have also made available Stranger Things Happen, Kelly Link's wonderful first collection and John Kessel's The Baum Plan for Financial Independence and Other Stories, which I regret I've not yet read.