I think in this day and age any business plan that is sitting on the shelve ready for use is likely to be outdated. Considering the new realities of this industry, I would suggest that you define the business case yourselve, once you know what it is you'd like to do i'm sure you'll be able to get quite a bit of help in determining if an economic viability is present.
I see it like this:
recognise the need for a service (or create it) determine the best way to fill the need and then calculate if you can make a profit doing it, sounds simple doesn't it ?
