There is one fantastic entry that I've send to a few of you..It is a self described work of Digital Ethnography by Prof. Wesch of Kansas Statr University. He says he explores 'mediated culture, seeking to merge the ideas of Media Ecology and Cultural Anthropology." I find it a profound illustration of McLuhan's the medium is the message
But - YouTube is lots of fun too - one of my all time favourites ie the Evolution of Dance - a classic for sure.
Library applications -I think there could be possibilities in the areas of patron instruction, promotion of serices, tours of facilties - lots of good things.