An interesting item on that list is Flooz:

  Flooz was meant to be online currency that would serve as
  an alternative to credit cards. It boggles the mind why
  anyone would rather use an "online currency" than an actual
  credit card, but that didn't stop Flooz from raising a
  staggering $35 million from investors and signing up retail
  giants such as Tower Records, Barnes & Noble, and
  Restoration Hardware.

That sounds eerily familiar in the modern economy.