Introduction: Electoral politics in the European Union and the 2004 enlargement / Cees van der Eijk and Wouter van der Brug -- Effects of space and time on turnout in European Parliament elections / Mark N. Franklin -- European elections as counterfactual national elections / Marcel van Egmond -- European Parliament elections and losses by governing parties / Michael Marsh -- Comparing the views of parties and voters in the 1999 election to the European Parliament / Andreas M. Wüst and Hermann Schmitt -- Locating support for European integration / Angelika Scheuer and Wouter van der Brug -- The media and European Parliament elections: second-rate coverage of a second-order event? / Claes H. de Vreese, Edmund Lauf, and Jochen Peter -- Media effects on attitudes toward European integration / Jochen Peter -- Non-voting in European Parliament elections and support for European integration / Hermann Schmitt and Cees van der Eijk -- EU support and party choice / Wouter van der Brug, Cees van der Eijk, and Mark N. Franklin -- The sleeping giant: potential for political mobilization of disaffection with European integration / Cees van der Eijk and Mark N. Franklin -- Prospects for electoral change / Martin Kroh, Wouter van der Brug, and Cees van der Eijk -- European elections, domestic politics, and European integration / Wouter van der Brug and Cees van der Eijk, with Hermann Schmitt ... [et al.] -- Postscript: the research agenda beyond the 2004 European elections / Cees van der Eijk and Wouter van der Brug -- Appendix A: The voter study / Cees van der Eijk and Wouter van der Brug -- Appendix B: The media study / Edmund Lauf and Jochen Peter -- Appendix C: Euromanifesto content / Andreas M. Wüst -- Appendix D: Election results, quasi-switching and turnout effects / Marcel van Egmond.