I have long been into a lot of the classic stuff like Can, Amon Du?l II, Ash Ra Tempel, Neu!, Tangerine Dream, Klaus Schultze...more recently have gotten into acts like Faust, Cosmic Jokers, and Guru Guru, plus a lot of other more obscure ones. The Roland Kovac New Set, anyone?

Some people say that the symphonic rock tradition that emerged from Germany (Grobschnitt, Eloy, Epidaurus, etc.) is not part of the Krautrock genre. That the Krautrock genre is defined more by experimentation, industrial influenced rhythms, etc. What do you think? What defines the genre?
Some of my favourite Krautrock albums are: Tangerine Dream - "Alpha Centauri", Neu! - "Neu!", Ash Ra Tempel - "Schwingungin", Amon Du?l II - "Tanz der Lemmings", Can - "Tago Mago".
Well, I know this is a rather broad topic, so I just thought I'd throw in a few things to start it off.