I'm just throwing this idea out there. It may already be in place and I just don't know about it (in that case, they need to promote it more).
At my undergrad (note, that the student body was about 2,000 at the time) we had a listserv that covered the entire campus. It was lightly moderated, and as a student you could send out pretty much any announcement for a group you wanted to. It made life so much easier when announcements of things to do came to your inbox instead of you having to seek them out. Granted, that at a school of the size of UND with as many student organizations, such a listserv might cause people's email to be overwhelmed, but I doubt that would happen immediately, especially if the listserv was opt-in rather than required for all students. There is also an option for daily digest format, with the day's announcements together as a single email.
I actually experimented with this idea a couple years ago with the UND-ENTERTAINMENT listserv, but didn't promote it that much. Technically, it could even be linked up with the Events board for a particular school, so that events posted to Campus Dakota would go out automatically.
So I'm asking people, would this be a good idea for YOUR school? Or does your school already have something like this in place? This option is available to all NDUS schools (the server for the listserv is shared between all the schools anyway).