New report summarizes youth vote surge in 2004. From CIRCLE:

CIRCLE released a guide to the 2004 youth vote that pulls together recent and historical data to further document the surge in youth participation. The guide summarizes data about youth voting in the 2004 election based on gender, race, and educational background and provides information on youth support for candidates, political party identification, and state-specific turn-out.

Here's a link directly to the PDF report.