I've just stumbled upon You Tube where people post their own videos for anyone to view. There are short videos of quite a few well known folk performers - so far I've found The Copper Family, Karine Polwart, Christy Moore, Dylan, Jim Croce and Tim Buckley plus a whole range of people I've not heard of. There are also videos of folk music from non english- speaking cultures, as well as Morris and Molly dancers. To explore the site click on CATEGORIES at the top of the home page and you will be offered a search facility.

http://www.youtube.com/watch?v=8Qypb3JIZN4