Wow man. That was a hell heaven of information. I never really cared to read about the early versions of digital money.
Though I knew about hashcash and digicash, I didn't have any idea about b-money and I was happy to read about it and how Satoshi contacted WeiDai regarding it. Thanks for sharing such a great article and I am sure it will help a lot of people like myself and give them more knowledge about the earlier digital financial system.