I need a brush up on US history from 1945-present for college. Any good resources that wont put me to sleep?

drothwell0303 asked: Below is the class description i will be taking. I want to go in with some background knowledge and im looking for sites, books, etc that give a fun or interesting review.
This course is a study of the broad cross-currents of American political, cultural, diplomatic and socioeconomic developments from the end of [...]