Set of online classes; seemed to be aimed at adults, though the reading covers fairly basic material. Interesting way of presenting the information.
Computing looks pretty comprehensive; has offline material as well as video etc.
Reading: US pronunciation etc.
First developed in 1986 or so, with contributions from children all over the country; was on an LP-sized Video disc - state of the art at time.
(THere is one in Kit's musuem ... somewhere)
This project retrieved the data - and is available (till Oct 31 2011) for updating.