Oath -- the new Verizon company that includes AOL, Yahoo, and yes, Engadget -- isn't saying what, exactly, will be replacing AIM. For now, though, Yahoo Messenger seems like the best possibility.

"AIM tapped into new digital technologies and ignited a cultural shift, but the way in which we communicate with each other has profoundly changed," said Oath VP of communications Michael Albers. "We are more excited than ever to continue building the next generation of iconic brands and life-changing products for users around the world."