Models for digital economies
¡ Subscription fees
l Per month, per year
¡ Connection time fee
l Per minute (e.g., Mead Data Central)
¡ Advertising
l By an interested party
l other economic models apply here
¡ Access fee
l Per download, may not have profile to remember
that you accessed this resource before
¡ Per-byte fee
l Typical of connection services (e.g., Broadband)