As said in many threads, listening is a key factor when trying to discover what makes a particular genre or song stick out. PinkieGuy pretty much nailed metal on the head, so I won't go into that one. Here are some other genres and tips in general with regard to different styles.
Dance/Dubstep/Rave: This one I want to put out there, because it's often misunderstood. Dubstep is not about the wobble bass, dance isn't about gated pads, and rave isn't about, "Oonce, Oonce, Oonce." The biggest key regarding any kind of "club," music, is not the instruments, but the drums.
Try to think of your drums as the dance itself. You stomp on the bass hit, you place your other foot down on the snare hit. Upbeats are generally when you lift your head, downbeats when you swing it down. High hat rhythms is about the other motion of your arms and the swing of your body.
With that said, you can construct drum patterns by picturing the dance motion of a person going along with the song. What makes dubstep is not the wub of the bass, but the stepping pattern of the drums (hence the "step"). The "dub" simply refers to certain characteristics of dub music added in.
Psychedelic/Trip Hop: One of my favorite genres, or as I like to put it, the, "For trippers, by trippers," music. Generally this music has a much slowly tempo when compared to dance or house music, but once again, it's about the rhythm. Trip Hop tends to favor a bass that meshes well into the drum groove. As for the drum groove itself, I tend to imagine it goes along with what one would be experiencing during a trip. Is it a rapidly accelerating heart beat? Add some pulsating bass kicks. Is it a calm, relaxing, peaceful experience? Add some ambient pads and sweeps with some faint bass kicks. After all, they aren't in their body anymore, are they? They won't hear the bass kick/heart beat as profoundly.
A noteworthy example:
http://www.youtube.com/watch?v=ZhS13Zy5oFE