So far I've slowly spread into the computers of 5 of my friends. The only other people at my university that use Linux are hipsters who give off the impression that they only use it because Apple isn't indie anymore. I'm considering starting a FOSS, Ubuntu, or Linux club next year or semester. Ordering mass CD's, making posters, having meetings, fun stuff. We'll see how that goes though.
EDIT: My Fiancée remains politely resilient though. She's comfortable with OS X, and I think that she's best suited to use that.