So, a while back I made this page on Facebook just for fun:
http://www.facebook.com/pages/The-Synth-Guy-in-Hardcore-Bands/306949293819I randomly checked on it earlier, and the first comment is from a random girl in Maryland asking about my friend's local band (Chicago).
There's nothing on the page about the band itself, so this random girl likes my friend's band, and just happened to like the fan page I made and comment on it about their band.
My mind was blown for a little bit.