The Junior General has a game of the Battle of Saratoga (1777), complete with paper figures for you to play with.
Washington’s Fury is a set of rules for wargaming the American Revolution. Unfortunately, it’s at Yet Another Yahoo Group, so if you want to take a look, you’ll have to join. I did, and they are definitely something I want to give a try.
The Perfect Captain offers the second edition of John Bull / Patriots, their rules set for game of the American Revolution and War of 1812. These are the most visually striking rules sets available today — either commercially or free. And these are FREE!
Delta 7 Studios offers a paper model of the Green Dragon Tavern. The Inn was a meeting place for Patriots during the period just prior to the outbreak of hostilities in the American Revolution. It’s in pdf form and in 1/120 scale.
Here’s a variant of Warhammer Ancient Battles for the American Revolution. No. Really. It could work.