Marketing Strategist & Global Technology Evangelist

Normal, social behavior is to lend books, music, etc.

Amazon To Allow Book Lending On The Kindle
It is simply normal, social behavior to lend your friends books, music, or whatever. In addition, this lending can drive viral acceptance, adoption and even purchase of the music, book, etc. Restrictions (e.g., DRM) that go against normal human behavior, also inhibiting viral, social awareness of books and music is just bad business. Bravo to Amazon for figuring this out.

Marketing Automation & Drupal: Presentation by Jim Caruso to the Atlanta Drupal User Group (ADUG) April, 11, 2013