I dug this up via Boing Boing:
'Logo R.I.P.' is a commemoration of logos withdrawn from their ocular landscape. Many are considered icons of their time or international design classics, whilst other cost millions only to be replaced within a year or two. These logos disappeared, yet in contrast to the ceremony an pomp that greeted their arrival, they often suffered an ignoble death. Now deemed defunct, they are consigned to the logo graveyard, no longer allowed to signify.
Funny stuff. You can even leave condolences to your favorites. It's a book, as well.