It looks like you are using an ad blocker. That's okay. Who doesn't? But without advertising revenue, we can't keep making this site awesome. Click the link below for instructions on disabling adblock.
This site has a LOT of songs from every genre and gives you the youtube clip of the song that was sampled to make it or what other artists have sampled their music. It tells you what time of the youtube clip so it's pretty easy to use.
It's really cool going back in time and realizing how much of the music we listen to is sampled. Or not even realizing something you listened to was not original.