As we all know putting whatever we are studying into context is the best way for our students to learn. That is why I jumped at the chance to work with a CA based group called ContextU, a while ago to digitize (we are also working on Android and iTunes) for all of US history. Right now we have up our second grouping on the American Revolution in addition to our first on the Civil War.
Each group has 30-40 "nodes" or people/place/events that have 150 word descriptions, the item on a timeline, located on a map as well as cause/effect and its relation to other like entities or groups. It would be a great way for your students to see connections when you are studying the American Revolution or if you have already started then the perfect way to review for a test.
Next up we will have early US.