We're using the American history guides from TQ. The book lists can be overwhelming but keep in mind she is giving you lots of choices to fit individual tastes, availability and how much time you have to devote to history study.
At first the guides just look like a long list of books but she has a heading for each stage in history with sub-headings for specific people or events. She does a great job of keeping the focus on America since this is written for 1-6th grade.
The book lists are not only set up chronologically but by reading level as well. So, you can use the guides for many grade levels. I love the commentaries which can be very short to quite long. Each topic starts with the spine and what the parent should read if they aren't confident in their history knowledge so you're learning along with your child. If she lists a spine she tells what chapter and/or pages to read for that particular topic.
She includes movies and coloring/activity books as well.
Some books haven't been in our library system but I've been able to find some great alternatives and she asks us to let her know if we've found a really great resource.
The yahoo group is great and there are schedules posted by many members.
My one issue, and it's my own flaw, is I can get bogged down in the topics because there are so many options and my son has to remind me to move along. I try to choose 2-3 books and an activity book if one is listed per major topic.
The lapbooks and notebooking pages from A Journey Through Learning are really helping me stay focused on a time schedule. I highly recommend them.
I have truly gotten a clear perspective on American history.