Squeezing the Espresso Book Machine

Printing-on-demand has long been a dream, and the Espresso Book Machine looks like it's making it a reality, albeit on a small scale. But what's interesting about this - aside from the ability to get public domain books printed on the spot - is that it depends on the existence of a knowledge commons. Pity that recent copyright laws are doing their utmost to squeeze that space. (Via Slashdot.)