When I took the US Histories, I used both the REA guide and InstantCert, which were helpful.
However, don't spend as much time on answering the question what as much as answering the question why. I memorized a bunch of events, what so-and-so did, when that one social group was formed, but that was all. I didn't know why all that happened. Why did that person start that movement? (haha, I'm sorry I can't provide specific names and events - it's been a while) Why did the second World War begin? (I do remember that event, hehe)
Does that make sense? It goes a little deeper than simple facts. You probably already know that, but just giving you a heads up.
With US History II specifically, there are SO many social groups and causes, it's ridiculous. I didn't know near enough about all that. Have a general knowledge of most social groups, their names (and thus abbreviations), and purposes.
I got a 44 when I took it and I am therefore confident that you can pass it with flying colors. Most importantly: use your practice exams as much as possible. Take them and study the answers & explanations. You need at least 60% on a practice test to be sure you can pass the real thing. When I take it again, that's what I'll be focusing on.
I sincerely hope that at least one thing I've said helps you in your studying for this test! Let us know the outcome.
"Have courage for the great sorrows of life and patience for the small ones; and when you have laboriously accomplished your daily task, go to sleep in peace. God is awake." Victor Hugo
/: CLEPs passed: Analyzing & Interpreting Literature (64), English Composition w/ Essay (64), English Literature (62), Introduction to Psychology (68), Introduction to Educational Psychology (61), Human Growth & Development (68), Introduction to Sociology (61), Principles of Management (59)
/: DANTES passed: Principles of Supervision (430)
/: CLEPs failed: US History I (49), US History II (44)
/: what's next? long break from CP! for an internship with the TeenPact ministry from January to June 2010