This recently launched ( http://www.savetheworldwithmusic.com ) site allows music-eggheads to put their knowledge to a good use. In fact, a very good use - Saving the World. This website offers a quiz about the pop charts, and, when questions are correctly answered, money is donated to the charity PlayPumps (depends on adverts being clicked on). This charity provides an innovative way for African villages to be able to access clean water via merry-go-rounds in school playgrounds that children play on. This operates a pump to draw up water from underground. See www.PlayPumps.org for more info.