PUBLISHING ON DEMAND (POD) used to be called derisively the ‘Vanity Press’. While the giant publishing houses either slept, entered a state of denial, or were paralyzed in the headlights, this ultimately logical solution to the lazy dominance of the publishing houses emerged. No editor gatekeepers, no giant warehousing issues, no tiny royalties for the authors. Just let the market decide. It is only a matter of time before this +- 30 Bn USD industry is turned in its head and David beats Goliath. Another industry democratized.
http://www.theindependentpublishingmagazine.com/2013/03/is-hybrid-new-buzz-word-for-literary.html?m=1