Jackie Shane reviews 3 data visualization resources in the January issue of Cyberskeptics Guide:
(The first of these, Gapminder, was reviewed here in September, 2005) The "gap" in Gapminder refers to the great disparities in health, income, education, natural resources and other socio-economic indicators that the U.N's Millenium Development Goals seek to address. Gapminder converts boring numbers into animated and interactive graphics, providing a more compelling understanding of inequality in the world; for an example of how dramatic animated statistics can be, see Hans Rosling's presentation of fertility rate trends.
Many Eyes and Swivel both offer a bewildering number of datasets covering all conceivable topics (searchable), and various ways of visualizing the data. Both sites accommodate user generated content.