Ever wonder what separates a charter school sponsor (aka authorizer) from a non-profit governing board? A charter management organization (CMO) from an education management organization (EMO)? With so many characters treading the boards of Ohio's charter school stage, even Gadfly needs a little help keeping them all straight (that's when they're not blurring their roles on their own). To that end, readers may want to check out a brief summary of Ohio's charter school governance structure and those organizations that play key roles within it. It's available here.