A lot of shoegaze: Slowdive, My Bloody Valentine, Ride, Spiritualized, Spacemen 3... Then older alt./indie stuff: Pavement, Guided By Voices, Yo La Tengo, Sonic Youth, American Football, Sebadoh, the Brian Jonestown Massacre, Neutral Milk Hotel.
A lot of concept albums that are just pure genius. Like Yankee Hotel Foxtrot, OK Computer, Pure Tone Audiometry...
Then Boards of Canada and Gorillaz.
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Punk rock died when the first kid said, "Punk's not dead."