Here is a critical discussion of the "science" of race put together by the social science research council. The linked article is a really good starting point, but you can find several other articles there as well.
Consider yourself encouraged to expand beyond your wiki barriers and join the adult discussion.
Eve is from Adam's Rib, the Earth is Flat, and Races Come from Genes
By Jacqueline Stevens
http://raceandgenomics.ssrc.org/Stevens/