"While DRM has largely been defeated in downloaded music, it is a growing problem in the area of , where people have had their books restricted so they can't freely loan, re-sell, or donate them, read them without being tracked, or move them to a new device without re-purchasing all of them," the advocacy group wrote in its of the event. "They've even had their ebooks deleted by companies without their permission."

To protest the use of restrictive measures like these, events are being held around the world today in cities including Cincinnati; Orlando; San Francisco; Boston; Madrid; Rome; Manchester; Nagoya, Japan; and Aveiro, Portugal, the FSF said.

DRM--dubbed "" by the FSF--has been widely decried by individuals, groups, and businesses around the globe.

I've already outlined , and the Electronic Frontier Foundation has published its own .