Quick google result:
FIRST DEBATE
Presidential debate
Date: Friday, September 26, 2008
Debate focus: Foreign Policy & National Security
Moderator: Jim Lehrer of PBS will ask the question
Format: Standing at podiums
Location: University of Mississippi
Oxford, Mississippi
SECOND DEBATE
Vice Presidential debate
Date: Thursday, October 2, 2008
Debate focus: Domestic and foreign policies
Location: Washington University
St. Louis, Missouri
THIRD DEBATE
Presidential debate
Date: Tuesday, October 7, 2008
Debate focus: Issues posed over internet and by audience members
Moderator: Tom Brokaw of NBC News
Format: Town Hall style
Location: Belmont University
Nashville, Tennessee
FOURTH DEBATE
Presidential debate
Date: Wednesday, October 15, 2008
Debate focus: Domestic and Economic Policies
Moderator: Bob Schieffer of CBS News
Format: Sitting at a table