One critical element of a nonprofit business plan and the part most often referred to as the business model asks and answers the question: just how will you pay for doing what you are doing, sustainably? Will your income be from fees for service; individual contributions; the grantmaking community; corporate contributions (good marketing for them); or, interest from an endowment?
This question of business model is the challenge for every nonprofit and the word most important: sustainable -- can you do this forever until of course when you achieve mission. That said, let's look at this nonprofit highlighted in the Christian Science Monitor. The organization -- The 1%. It's focus: mobilize architecture firms to give probono services to solve nonprofit's "accomodation" challenges.
Is the idea that corporations will support the work sustainable? I'm not so sure. And can't nonprofits contribute based perhaps on a % of the total value of the probono architecture work they receive? Perhaps. What's your thought?