The popularity of pinterest has blown me away. I was wondering whether something similar can be created for internal use based on a content management system like drupal where different company employees can collaboratively pin sites ?
we built a close replica of Pinterest in Drupal at ThemeSnap.com called PinBoard: http://www.themesnap.com/premium-drupal-themes/pinboard.html. I'm sure you can lock it down to only approved, role specified users to post there.