Read up on Bush
The best place to check the facts is at factcheck.org. It is a project of the Annenberg Public Policy Center of the University of Pennsylvania, and provides regular updates on claims made by the candidates. Excellent.
There is a great collection of essays at ToppleBush about President Bush’s record. The link goes to essays about his presidential record, listed by issue, and covers 9/11, The Iraq War, The War in Afghanistan, Foreign Policy, the Economy, Enron, the Environment, Domestic Policy, and general commentaries of various kinds. They also have other aspects of his record (as governor of Texas, military, etc).
Don’t miss Paul Krugman’s article on Bush as the Arabian Candidate.
Bush Watch also has some good editorials.