I've seen a couple of different throat singing groups-- it's really a magical kind of music. The most recent was a duo called Nukariik, who I saw at the Folk Alliance Canada Conference in Montreal last November. They were excellent performers and also shared a lot of information about how throat singing is done, where the different songs come from, and Inuit culture in general.
Their website is at www.nukariik.ca/ and has information about throat singing and some examples to listen to and watch.
blickie repaired - when making links to sites OUTSIDE of mudcat you must include http:// in the address - joeclone