I'm hardly new to music but am relatively new to electronic dance music, and in roaming around the Props' web site, I found this link to Ishkur's site...
It does a really good job of explaining and demonstrating the different styles of dance music. Listening to all of the samples of various groups in various categories is a real education. After listening to everything, I've discovered my interest is in Eurodance... Yeah, it's trashy and cheesy but I LIKE it! Seriously, though, I wish I'd seen that site a while ago. Great site.