A very enjoyable 1/2 hour video walk and talk at and around North Bridge, with J.L. Bell, author of "The Road to Concord: How Four Stolen Cannon Ignited the Revolutionary War" (which is well worth reading). I've only been to Battle Road once, and enjoyed seeing the terrain again, and this could be particularly interesting for folks thinking through their Second Strike; I know the lay of the land was not what I had envisioned and seeing and better understanding it changed parts of the story for me.
https://www.youtube.com/watch?v=vTPKD4NPPnA (https://www.youtube.com/watch?v=vTPKD4NPPnA)
Mr. Bell also has a fantastic blog with tremendously detailed information on the beginning of the American Revolution. You can subscribe to the blog and receive a daily e-mail with each post. They're always interesting.
http://boston1775.blogspot.com/ (http://boston1775.blogspot.com/)
Thanks. I'll be taking a look.