About 40 result in category Charts - This category needs an editor
    http://www.lanet.lv/misc/charts/

    Features a directory of links to charts on the Internet from 80 countries.

    http://www.numberoneinhistory.com/

    Extracted from Billboard, showing the number one song on any date back to the 1890s, with links to the more recent tunes on Youtube, Rhapsody and iTunes.