Look at this! It's AT&T's international searchable database of zoos, aquariums, museums, libraries and stuff. It looks like they offer classroom videoconferencing for hire. A quick search showed me that you can learn about Alaska's marine biology by videoconference. It's for schools, not for home use. But it's still pretty cool.
http://www.kn.pacbell.com/wired/vidconf/directory.cfm

Youth lives by personality, age lives by calculation. -- Aristotle on a calendar