I've long thought the real value of the Onion was not in it's eerily on-target spoofy news, but in the clever a.v. Club. I agree with the movie reviews there quite a lot (i.e. Brett Ratner is a big douche), disagree with the music reviews quite a lot (they seem to think Arcade Fire is the next best wonderband), but on the whole I think the a.v. Club is a fairly decent filter for media and culture.
Anyway, they've got a nice Primer up on Neil Young, which is really helpful for someone like me who's more of a passive Neil Young fan, knowing most of his 'hits,' but really clueless as to where to go next in trying to discover his music.