OverDrive has announced that it has acquired TeachersNotebook.com, an online marketplace for "teacher-created curriculum materials" for K-12 education. The acquisition gives users of TeachersNotebook.com exposure to OverDrive’s network of schools and libraries. TeachersNotebook.com will remain a stand-alone subsidiary of OverDrive.

TeachersNotebook.com enables teachers to browse free and low-cost instructional resources, and to create their own "shops," where others may purchase their original materials. OverDrive officials say that some 550,000 teachers use the service as "a collaboration, inspiration and marketplace hub for thousands of free curriculum materials as well as a growing catalog of more than 90,000 affordable educational resources," including resources aligned with new Common Core state standards.