Committed to preserving land associated with battles of the Revolutionary War, War of 1812, and the Civil War, the Trust also has an educational arm with an incredible amount of content, ranging from biographies to battle overviews. Their YouTube page has hundreds of videos, both instructional and interactive.
A great collection of biographies and stories by historians, ranging from battles and themes of the Revolution to profiling specific events that are often overlooked.
Led by a group of professional historians, a great resource for people and questions associated with the Battle of Princeton. This group specializes in group tours (and class trips) giving in depth narration of the Ten Crucial Days Campaign in New Jersey.
A museum chalked full of Burlington County history. The Lyceum has an expert team of historians who can provide school tours and access to original artifacts dating to the Revolutionary period.
Believe it or not, this is a great search tool for many early resources, particularly those published in the nineteenth and early twentieth centuries. Most of the Pennsylvania, New York and Massachusetts historical society archives can be found in full here; all containing original soldier diaries and contemporary accounts suitable for classroom resources.