The provision of the cc context in any effective form means anyone can create currencies as they choose. Hence most standard approaches of revenue generation will not persist. You can't charge people for free money for long.

Long term planning of development funding for cc systems therefore cannot rely on standard approaches to market and revenue development. There is, for instance, no manageable territory to "own" or control - just open ground with very low entry expenses.

A substantial model - "ldi" are "LETSystem Development Initiatives" - has already been developed. It makes use of revenue streams already well proven to be successful in the "commercial barter" world, but applies them in an scrupulously ethical manner, in a particular context, and only for a limited time.