Here's a neat website on Musical Acoustics, which I found from the Scientific American 2005 Web Awards. I'll add this site from the University of South Wales to my list of Music Sites on the left. I had a student do a paper on the acoustics of didjeridus two years ago, he would have loved this resource.
Speaking of unusual aerophones, I will finally get to dust off the shofar this year, even if a week later than I had hoped. I usually play for the campus services of Rosh Hoshana and Yom Kippur, but communication lines fizzled for the first Holy Day. In any event, I look forward to seeing how awesome I can make the Tekiah Gedolah that ends the Day of Atonement.