Every time I think about the education space, I think back to a couple of Steve Krenzel's posts about his startup's experience.

• http://news.ycombinator.com/item?id=1343380

• http://news.ycombinator.com/item?id=1343564

Quick summary: Union politics can rear its head in unexpected ways. :(

There's probably good money to be made in this space. Goodness knows there's plenty of low-hanging fruit. But you may run-up against some terribly well-entrenched opposition.