Ebooks are the biggest revolution for reading since Gutenberg... and not because we're switching from paper to digital.

In the 15th century, the invention of print changed the world.Reading and writing were skills few owned. Producing books required copying every word by hand. Print brought knowledge and light to thehuman race and was, perhaps, the most important invention since language itself.
Now, in 2010, we're seeing a new revolution for the book. At a dizzying pace, ebooks are taking over. Millions of readers have already switched to ereaders such as Kindle or Nook. They carry hundreds of titles in their handheld devices whose monitors mimic paper. But it's not the medium--an electronic device vs. a paper book--which is significant. This is a revolution because for the first time, authors can sell their work directly to readers.