If you know it is an investment bubble when mom and pop investors get involved, then you know it is a philanthropy bubble when Mark Zuckerberg gives $100 million to Newark. While I'm strongly in favor of more equitable funding of urban (and rural) education, I think the record on dumping piles of short-term money on school districts is pretty clear. It doesn't work that well. And now we're entering a unique sellers market for school reformy services. Get ready for either some crazy inflation or a drop in quality.