Antimedia has put together some of the information about Kerry's war record into a nice neat package. Go check it out.
And here's a handy timeline, also from Antimedia.
And over at Captain's Quarters, you can find some evidence which seems to indicate that David Alston, who appeared on stage at the DNC with Kerry and talked about Kerry's service in Vietnam, didn't actually serve under him. It's not ironclad, but it is interesting.