depends on what your looking for? there are different sub genre's of electronica. do you want drum n bass? trance? ambient? i mean theres not only about 5-7 different sub genres in electronica but then theres different variations in each one.

so looking for some "techno"? i would try some aphex twin or maybe some john digweed or sasha. check out a series called "global underground" i personally like those. they are 2cd sets that are nothing but sets by x artist. if your looking more artists try maybe the chemical brothers or crystal method. its really all about finding some people you like and then finding more stuff by that artist and once you wanna move on find some other artists that do the same type of music. hope ya have fun finding whatcha like!