Charging 20 cents a page, paid only when a customer orders a copy, H.P. dreams of turning MagCloud into vanity publishing’s equivalent of YouTube. The company, a leading maker of computers and printers, envisions people using their PCs to develop quick magazines commemorating their daughter’s volleyball season or chronicling the intricacies of the Arizona cactus business.

“There are so many of the nichey, maybe weird-at-first communities, that can use this,” said Andrew Bolwell, head of the MagCloud effort at Hewlett-Packard.

Even print-on-paper will change – and power will be dispersed.