Playlists and mixes (for IPods or lazy people)

[B00T]

Does anyone know of any websites or forums where people upload various playlists or mixes of songs?

I feel like downloading hundereds of songs but cant think of anything and I'd like to listen to some stuff I never heard before. Does anyone have any links or some places to go to just download and sift through piles of songs, possibly organized by genre?