Some terms for electronic money and the folks who use them:
Digital Cash Internet essayists
Ecash First Virtual, Inc.
Electronic Commerce Visa and MasterCard
Net Checking NetChex & NetCheque
These terms largely reflect the values of the issuing
corporations (I'm unsure of the first one, however).
Credit card companies want you to spend quickly, those who
issue checks want you to write them, and companies
named "virtual" want you to use something that is "almost"
cash: as easy to use as old paper cash, but better.