EdSurge is a commercial news source focused on education technology.
Investors include the Bill and Melinda Gates Foundation, the Washington Post Company, New Schools Venture Fund, and Paul Allen & Company (among others).
It's a good example of philanthropists providing investment capital right alongside business investors in a commercial venture. It happens to be focused on the intersection of commercial technology and public education - one of those public goods that enjoys at least rhetorical non-partisan support. Private, independent, commercial, public - it's a truly blended venture. It's long term revenue model is still being created (journalism in general is looking for the answers here) - but I think this is an example of something to watch.
It's also a really good looking, easy-to-use, and engaging site - complete with wiki to invite participation.
Note: I have no affiliation with EdSurge, I found out about it through a tweet.