Large-scale assessment programs rely on teachers to administer the tests and to interpret and communicate the results. Consequently, it is important that teachers have up-to-date knowledge about the testing programs. Education Departments' web sites are ideal tools for communicating such information to teachers. The web sites of Education Departments across North America were surveyed for information about testing programs, including their purpose(s), sample items, appropriate interpretations and uses of the results, summaries of performance trends, and tips for communicating results to parents. Sites varied widely in what information was provided and the ease with which it could be located. (Contains 3 tables and 1 note.)