I'm on the academic job market this season for a position in a STEM field. I've had one on-campus interview and may receive an offer from this school within the next week or so. I've also had Skype interviews with a few other schools, but haven't received any on-campus invites from them. (The Skype interviews occurred about 3 weeks ago.)
At this point, should I let these schools know that I've had an on-campus interview? Or is it safe to assume that I've been rejected by them if I haven't received a campus invite already?