Penn State just announced its new project, "Building Community: Medieval Technology and American History," a site that appears to be aimed at promoting the study of medieval technology among by providing resources for high school students and teachers. The site still has a lot of kinks in it (like XXXX where material is missing, and links that go nowhere yet), but they just announced it today.
It looks like the project is aimed at a non-scholarly audience, with such essays as "Who was Geoffrey Chaucer?"* If you're a history teacher, though, this should be right up your alley.
*My answer: A prominent blogger.