Hey Guys,
I’ve been meaning to post this for a while but I keep forgetting.
Senzoku Gakuen has posted a whole bunch of videos about Japanese traditional instruments on iTunes U (all free), and they’ve got a whole section of lectures on Tsugaru Jamisen:
There’s also one on the shamisen in general if you poke around a bit.
Anyway, it’s all in Japanese, but even if you don’t speak the language, there are some nice performances and demonstrations which you all might find useful.
Enjoy!