Web Sites: PBS.org
Why I am recommending PBS.org:
PBS television has established itself as a trusted place to turn to and tune in to for quality educational programs. PBS.org expands this contribution by offering a range of Internet based services.
From the Website:
PBS, headquartered in Arlington, Virginia, is a non-profit media enterprise owned and operated by the nation's 348 public television stations. A trusted community resource, PBS uses the power of noncommercial television, the Internet and other media to enrich the lives of all Americans through quality programs and education services that inform, inspire and delight. Available to 99 percent of American homes with televisions and to an increasing number of digital multimedia households, PBS serves nearly 90 million people each week.