Other
Manchester Museum of Science and Industry: Sound 101: Bad Vibes
Learn about sounds and rate sounds from just "bad" to "really horrible." Then read an explanation about acoustics and the reason why people find some sounds to be worse than others. Also learn to mix your own sounds.
Other
Thumbnail History of the Banjo
Site that focuses on the development of the banjo instrument, but also traces its role in minstrel shows of the 1800s. Offers different viewpoint of this genre.