Perhaps video tours of buildings, factories, offices, and local amenities. A recent study by the Stanford Poynter Project showed that people are most attracted to article text and article summary briefs. This data backs those content proponents. But we cannot ignore the fact that photographs and graphics attract a lot of viewers. They open the door for more sensible and coherent ways to package learning content and resources for students and developers alike.
Most distance learning is really just distance information.
If you want people to learn, you need them to interact with real situations in real time. In the last several years McLuhan has emerged from the dustbin of history to become a pop icon of the Internet age.