07/12/2010 05:12 am ET | Updated May 25, 2011

Amazon 'Popular Highlights' Suggests It's Peeking Over Kindle Users' Shoulders

Readers of old-fashioned dead-tree books often like to underline or highlight passages they find particularly meaningful, or scribble notes for later reference. All e-book readers offer an electronic equivalent of such note-taking. But Kindle users who highlight passages will now have a record of those highlights sent back to Amazon servers, where they will be compiled and sorted to help produce a new feature called "Popular Highlights."