Words, text, and links...anything goes when it's reality casual.
eta: I think I should specify how I envision this as different from Auntie's what thread! I am in strong favor of a WTF-type thread, btw, and I look forward to posting there. I hope this one will be slightly different in that it isn't so much things you see in the real world that are weird/freaky/wtf-ey -- but more things you don't see in reality, or people appear to be existing in a reality different than yours, etc. Hope that helps. Carry on!