Not a fan of pop generally, though one of my favorite musicians is Elliott Smith, and he was pretty insistent that he was pop. I may start using Pandora again.
My question was less about discovering music and more about exposure to it. Someone mentioned that a certain song was overplayed, and the last song I had heard so much to feel it was being overplayed was Gangnam Style.
As far as discovering music, I mostly rely on friends. Of all my favorite musicians, I think only two involved me stumbling across them in ways other than "Hey Clags, check out __________, I think you'll like them." One (Iron & Wine) was a CD I stumbled across when cleaning out my car a decade ago, left there by my sister. The other (Saycet) was at a random concert in Seoul that I randomly decided to attend. Also an awesome concert, though my wife fell asleep sitting on the floor (instrumental music puts her to sleep).
A friend of mine also writes a weekly music blog based on the multiple shows that he sees the previous week(not sure how he does it as he has a full time finance job.)