There are two wikis associated with Enduring Visions.
The first is the Teacher's Wiki, where participating teachers may post lesson plans, pool resources, and brainstorm collaboratively. While the material there is open to anyone, only participating teachers are able to post and participate.
The other is the Resource Wiki. This is a growing database of primary documents, images, videos, and sound clips from all ten eras of US history.
You may also be interested in visiting the Center for Children's and Young Adult Literature at the University of Tennessee, which hosts numerous events as well as maintaining a large collection of new books that teachers can preview.