Although most "popular" files are easily found through torrents, for random and obscure data, whether it be music, video or documents, I still think P2P clients are the way to go. They can be pretty slow, but the sheer diversity of files that you can find is unrivaled. For those who still use P2P clients, which client do you use? How well does it work? BTW, I'm not interested in format-specific clients such as soulseek.
Also, it seems like the Razorback 3.x servers I used to use are finally getting shut down. Which are your favorite servers and where do you find the server lists?