My company (http://localist.com) is currently powering the social events calendars of over 40 institutions. While we're not technically an education company, the majority of our customer base is higher education.
Higher ed is definitely a unique vertical that has its pros and cons; I'd love to hear about other HN readers trying to break into the space and the challenges you're facing.
Biggest problem is the infrastructure (quality internet access is still a luxury) and basically the school's internal staffs are stuck in the 90s (more than half aren't trained in using e-mail and this is in the top high school of the capital city).
On the brighter side, there are no bureaucracy, no regulation.