How do you find new music for your collection?

I have 120++ myths, but I still need to process them, so the number will be much smaller. Friends sometimes give me advice and share things. Also, friends always complain that they have nothing to listen to, so they ask me to give them something, saying they have absolutely nothing. I never have that problem; I have several unlistened-to discographies. The same goes for computer games; they always buy 5+ games, borrow games from me, somehow manage to finish them all in a week, and want more, even though they aren't hardcore gamers (they do a lot of other things at the same time), while I never finish games that quickly. I have several game discs that I haven't even put in the drive yet, and I want to play them. I guess I'm just slow.