http://techno.org/electronic-music-guide/

It, quite literally, visually and audibly maps out to excruciating detail all the branches, genres, sub genres, sub-sub genres and various outshoots of pretty much all electronic music. The great part is it has tons and tons of samples for every single granular genre.

I’ve always liked some kinds of electronic music, and hated others, but never really knew labels for them outside of “jungle” vs “house”. The above site has really helped me nail down the specific sub genres that I’ve always loved, and just never knew the names for.

Its crazy how much there is, it’s probably gonna take me 2 hours to go through the entire list.  Plus you get to listen to cool music the whole time.  Well, some of it isn’t cool.  But thats what makes it interesting, to so define in such fine detail what kind of music you specifically do and do not like.