They do not need to be explained under the parent's rubric, because that's describing the provision of public goods by large organizations. FSF, EFF, and Wikipe

They do not need to be explained under the parent's rubric, because that's describing the provision of public goods by large organizations. FSF, EFF, and Wikipedia are small organizations and operate differently. Which the linked book covers. Even in its precis, had you bothered to click through.