I'm actually reading a few different books all at once. I got that from taking college English...don't ask. Anyway, I'm reading a humor book called Not Tonight Honey, Wait 'Till I'm a Size 6. and Lies My Teacher Told Me. I'm on a history kick again, so I've cracked Don't Know Much About History to brush up a little bit.
Any recommendations on history, especially American history are welcome. 
I like to have a fiction and non-fiction book going at the same time. Sci-Fi and Fantasy are the main things I read in fiction, though there are some historical and the occasional mystery. Right now, it's
Live Free or Die,
Making Economic Sense, and
Slow Fat Triathlete. The last of the fiction was
White Knight (Dresden Files) and
Dexter in the Dark (audiobook). I may drop back in on the Bartimaeus Trilogy (audio) - Simon Jones is an awesome narrator.
1776 is great, as is
Founding Brothers.
Founding Brothers starts off with the character/slander war between Alexander Hamilton and Aaron Burr, and goes on to the shifting alliances between the various authors and signers of The Constitution. I have
John Adams on my upcoming Audible.com picks. My mom is trying to get me to read some book about Abigail Adams too, but I'm waiting for her desire to talk for hours about the book dies down a bit.
Oh! It's officially historical fiction, but
Imperium by Robert Harris is pretty good. I listened to the audiobook, ready by Simon Jones. Is about the rise of Cicero in the senate... Which reminds me,
Pompeii is on my short list for fiction, too.