The American Yawp collaboratively edited textbook has been around for a few years now, and Chicago University Press has recently announced the publication of a free history textbook (although it’s not strictly speaking “open”), Open Stax has a US History Textbook, and I’m sure there’s a range of other materials available as open access resources, but it’s my impression that uptake has been slow and quality varies greatly. I would be interested in a talk session where we discuss what kinds of resources are available, how well used they are, and what could be done to facilitate the creation, discovery, and use of these kinds of materials.