It's always encouraging to hear about schools like Stanford and Berkeley that are actually supportive of student-run initiatives like these. I just graduated from McGill University, and throughout most of my undergrad I was one of the admins of a website (wikinotes.ca) for sharing notes and other student-created course materials. We got little to no support from the administration, despite attempts at reaching out, and the only reason we knew that they heard about us was a mass email - filled with misinformation - sent out to profs warning them about us.

I know McGill's infamous for being especially bureaucratic, but it can't be impossible to get their support. Those who got their school's administration to support their project, what did you build and how did you do it?