Ideas like these are good, but in order to make them last, they must somehow or other, be put into a business context and be commercially self-sustaining. If not, the group sustaining the project (local radio, online radio, website, blog, etc.) will lose time and money as it goes.
Another point to note is to iron out what it is we want. Is it to make local music reach out to people outside the local music scene? Unpopular radio, soft, rampage on the airwaves and similar projects are platforms within the scene. They reach out to people who already associate themselves with the local music scene. Not a big crowd to begin with.
How about the masses? Popular radio stations, national television programmes, video hosting sites, audio hosting sites. Is there a way to exploit these platforms to, put it crudely, "ambush" unsuspecting viewers/ surfers into listening to local bands? Or to put it nicely, to subtly introduce the open minded to good local music?
Are our marketing strategy right? Should we market our music to our own selves or should we be marketing them to a larger crowd? All these investments need money to fuel 'em but from where will it come from? Bank loans or full/ part-time jobs?
Answering a few basic questions may make the picture clearer, but alas, we realise that the whole idea is actually a business of some sort because money and time is involved. If no profit or little profit is made for the good of everyone else, who then, is going to sacrifice their meals and eat instant noodles for lunch and dinner everyday to fuel the passion of others?
Maybe we should case study Finland to find out how they did it.. >.<