Wikipedia
Flurb was a science fiction webzine, edited by noted science fiction author Rudy Rucker. In addition to short stories, Flurb featured paintings and photography by Rucker. It was released biannually. Its model was notable in that the author of an accepted story retains full copyright, including the right to have the story published elsewhere, and to request that it be taken down at any time.
Flurb releases tended to garner significant online attention, with issues having been mentioned in several prominent blogs including Boing Boing and io9.
Noted contributors to Flurb included Terry Bisson, John Kessel, Kim Stanley Robinson, Paul Di Filippo, John Shirley, Charles Stross and Cory Doctorow, as well as Rucker himself.
Flurb closed in 2012.